Existential Logicism · Pillar 4

Persistent Present Determinism

The present carries what happens next. The future does not have to exist already.

Matthew Tripp Zejda

In Logical Elimination of Infinite Regress, I asked what supplies reality’s ground rather than endlessly borrowing it. Now I turn to what that reality is doing. How can the present carry the consequences of earlier events, determine what follows, and remain the only actuality that obtains?

I call this account Persistent Present Determinism, or PPD. Reality obtains as one complete, finite present configuration. Its continuing changes arise through the structure and capacities of that configuration under its governing law. The past has occurred; the future has not yet occurred. Neither needs to remain alongside the present as another region of actuality.[1]

What I mean by the present

The present is not just the contents of your attention. It includes the world you are attending to, the processes you have not noticed, the structures through which you notice anything, and the relations among them. A complete present is not a photograph of a few visible objects. It includes the capacities, constraints, and obtaining conditions through which those objects can persist and change.

Nor does “persistent” mean that reality is frozen. What persists is actuality, not an unchanging arrangement. A real configuration gives way to another through the conditions it carries. A person’s memory, a changing environment, and the activity through which a decision is made belong to that process. The present does not need an empty interval between configurations or a separate container in which to happen.

There are two commitments here. The first concerns what obtains: one present actuality, rather than an inventory of equally actual past and future states. The second concerns how it continues: the complete source and its full law determine a unique successor. I defend them together, but I do not make one disappear inside the definition of the other. Saying that something happens now does not, by itself, establish everything about its continuation.[1]

One present does not mean one private viewpoint, one universal clock reading, or one motionless instant. It means one obtaining actuality whose internal relations carry its continuing change.

The Epistemic Refutation Paradox secures the occurrence that a performed denial cannot remove. The Illusion of Nothingness examines why absolute nonbeing cannot do the work of a realized state or source. LEIR examines grounding. PPD carries those results forward while stating the further conditions needed for finite present actuality and deterministic continuation. Each argument retains the work that belongs to it.

The past is real history, not a second place

Look at an old photograph. The photograph exists now. The scene it records happened earlier. Its survival can give you evidence about that scene without requiring the entire earlier configuration to remain in existence beside you. A document, a scar, a memory, and an instrument record carry their histories through present structure. Their effects have not become unreal because their earlier configuration no longer obtains.

This is the distinction between a record and the event recorded. Playing a recording is a new present event supported by an existing record. It does not make the original occurrence happen a second time. Equally, losing a record does not mean the event never happened. The reality of an earlier occurrence is not conditional on our retaining enough evidence to reconstruct it.

Claims about history still need examination. A memory can be mistaken; a document can mislead; apparently independent reports can repeat the same error. The actuality of a present token establishes that the token exists, not that its content is true. Tripp’s Prison explains why knowing remains mediated. Comparison, independent checks, and correction can strengthen historical knowledge without turning that knowledge into direct inspection of a still-existing past.[1][3]

The future is constrained, not stored

A plan for tomorrow is also real now. So is an expectation, a fear, a forecast, or a simulation. These are present organizations with future-directed content. The event they concern is not already actual merely because a representation of it is actual.

Determinism strengthens the account of the source. It does not convert that source’s consequence into something already occurring. A present configuration can carry sufficient conditions for a later outcome without containing that outcome as another presently realized event. Knowing, predicting, or describing what will happen is not the same thing as that happening.

This also clarifies time-travel stories. Within PPD, recreating an arrangement that resembles an earlier one produces a later configuration. It does not return you to the original occurrence. Even exact qualitative similarity would not erase the difference between the first occurrence and its later reconstruction. A paradox that requires a still-existing past as its destination therefore depends on the temporal ontology I reject.[1]

Finite actuality can carry continuity

Calling the present finite is not the claim that a finite observer has measured every part of reality. It is a claim about what is independently realized. The finite-present premise requires a finite complete specification of the obtaining distinctions, their organization, and their realized values in an adequate descriptive scheme.

Counting a few coordinates is not enough if one of their supposed exact values silently contains an independently infinite specification. Conversely, a finite formula can refer to an infinite mathematical structure without physically instantiating all its members. Mathematical reference, a finite description, and physically realized content are different matters. My exclusion of an actually infinite present retains that distinction.

Finitude also does not supply a smallest physical unit, a universal clock tick, or a common maximum size for every possible present. Those would be additional claims. The numbered states used in the formal argument mark the resolutions being considered. Starting the notation at zero does not assert a first moment of all reality.

Continuity does not require keeping every earlier state intact. What matters is what the actual configuration carries forward: operative relations, constraints, capacities, traces, and changes in organization. There is no cosmic eraser that destroys existence itself and no cosmic library that must preserve every previous configuration as a second actuality. A change in what obtains is not a passage through absolute nonbeing.[1][3]

Why the complete source determines the continuation

My deterministic argument asks a more demanding question than “Did one outcome happen?” It asks: What would make a different outcome arise from the same complete source under the same full law?

An incomplete description can leave several possibilities open because it omits relevant conditions. That tells us something about the description. To argue about reality’s full continuation, we have to include every actual determinant, not merely the variables we happen to have measured.

  1. Fix the complete source and the full law. Include the obtaining constituents, relations, capacities, and relevant values. A hidden selection mechanism cannot be left outside the source and then quietly invoked to explain the outcome.
  2. Require a ground for the difference between outcomes. I call this contrastive source sufficiency: different fully realized continuations require a differentiating ground in the source conditions or the law governing their production.
  3. Hold that comparison fixed. Two distinct successors from an identical complete source under an identical full law would require a difference that the comparison excludes. Under source sufficiency and causal closure, both cannot remain admitted as distinct continuations of that same full source.
  4. Include actual continuation. On the domain where continuation occurs, there is at least one successor. The preceding argument gives at most one. Together, they give exactly one.

This is the reasoning behind Lemma 5.3 and Theorem 5.4. Completeness, a definite current state, and one observed result do not separately prove it. The source-sufficiency demand is the additional explanatory commitment that gives the deterministic conclusion its strength.

Why insist on it? Because listing outcomes and announcing that one occurred leaves the particular contrast unexplained. A distribution tells us how outcomes are assigned probabilities; it does not, merely by being a distribution, identify what determined this realized outcome rather than another. I am requiring an account of that difference. A stochastic rule is not a contradiction in mathematics. The question is whether it satisfies the stronger explanatory demand I am making here.[1]

The deterministic claim is not that one result becomes definite after it happens. It is that the complete source, under its full law, fixes the result that follows.

That leaves plenty of uncertainty for us. Our models can contain multiple candidate outcomes because our access is limited, our descriptions are coarse, or we do not know the full law. Those represented alternatives do not become multiple actual futures just because the model displays them.

A caused choice is still your choice

You are not absent from the source that determines your action. Your memories, values, information, attention, habits, and deliberation belong to it. When you consider an alternative, inhibit a response, ask a question, or make a plan, those are real processes through which what happens next takes shape.

The contra-causal proposal asks for something else: an action that could depart from the identical complete source and law while somehow remaining more genuinely yours. Within PPD, changing the outcome requires a relevant change in its source. Beyond that deterministic argument, Existential Ground asks what would make an unexplained departure belong to you. If your reasons, priorities, and organized capacities explain the difference, the difference has a source. If nothing about you explains it, removing that explanation has not created authorship. Randomness does not supply ownership merely by interrupting determination.

What remains is not a consolation prize. It is the person who actually deliberates and acts. Acting through your considered reasons differs from acting under coercion or restraint. Learning differs from reflex. Greater knowledge and stronger capacities for reflection can change how your decisions arise. These distinctions concern the organization of causation within a person; they do not require a person outside causation.[1][3]

Determinism is not fatalism or predestination

Fatalism says the outcome happens regardless of what you do. Determinism includes what you do among the causes of the outcome. Removing the action from the explanation can remove one of the very conditions that produced the result. Effort is not made irrelevant by having causes.

Predestination adds an assigned outcome, a planner, or a completed script. PPD requires none of those. A source-determined successor does not have to be an already-existing future selected in advance by an external will. “Determined” concerns the relation between the source and its consequence. “Already actual” makes a different claim.

A counterfactual comparison therefore has to keep its terms honest. A person who learns something, makes a different plan, or encounters a warning is in a different causal situation. We are not imagining an intervention outside the universe changing an otherwise identical total reality. We are comparing realities whose participating conditions differ. Different conditions can also converge on the same result, so determinism does not promise that every effort succeeds or every change produces the outcome we hoped for.[3]

You can help shape the causes of your later choices

A plan made now can change the conditions in which a later decision occurs. You can arrange your environment, prepare a response, seek information, practice a skill, or make a commitment that becomes part of your later situation. The decision to do those things is caused too. That does not prevent it from becoming a cause.

In Existential Ground, I call this meta-agency: agency directed toward the conditions of future agency. You do not become the uncaused author of your entire history. You become an active participant in what that history is producing next. Reflection and repeated practice can change the person who later faces a choice, without guaranteeing complete control over that person’s circumstances.

You do not have to escape causation to change your life. Your efforts belong among the causes through which change becomes possible.

Responsibility belongs in this same account. We can ask what happened, what harm followed, what someone understood, and what would help prevent a recurrence. Protection, answerability, repair, and learning remain important. What falls away is the picture of a morally isolated self that created its own character independently of the conditions that formed it. Understanding those conditions does not require abandoning the people affected by an action, including the person who had to choose.[3]

Belief and meaning belong inside the same reality

Finite Mind, Finite God follows this concern into belief and accountability. A demand to believe is not the same as an ability to become convinced at will. Evidence, access, experience, and capacity matter. The Fairness Clause and Salvation Paradox examine what follows when a religious account itself makes responsibility sensitive to those conditions. Their argument is not that every person is equally informed or that every failure is excused. It is that a fair demand cannot simply ignore the conditions through which conviction becomes available.[4]

Love and meaning are not erased by locating them within reality. They are lived through attention, memory, attachment, care, and the consequences people have for one another. Calling those relations caused does not make them imaginary. Their reality is the reason an action can matter. PPD locates that life in the present; the wider arguments about maintained identity and finite significance explain why it is not reduced to an isolated, vanishing instant.[3]

Time describes change; it does not store reality

We can order events, compare durations, reconstruct histories, and model trajectories without treating the temporal representation as another object that holds all its represented events at once. A line containing many marked moments is a present representation. Its usefulness does not make those moments a presently completed physical inventory.

My disagreement with the block-universe interpretation is not that a spacetime model cannot represent differences, causal order, or dependencies. It can. The disputed step is co-actuality: treating the whole represented history as equally obtaining, rather than distinguishing what has occurred, what obtains, and what has not yet occurred.

Within the present-only account I defend, a genuinely not-yet-actual state can become actual. A completed archive in which every state already obtains has no such acquisition of actuality left to explain. Calling ordered differences within that archive “change” does not make the two commitments identical. I reject the archive as an account of that becoming, not the use of mathematical structures to represent temporal relations.

This rejection retains its premises. Present-mediated knowledge alone is not a proof that every competing temporal ontology is impossible. The formal argument states the present-only commitment explicitly and develops what follows with its finite-content and source-sufficiency conditions. That is different from quietly treating the fact that I remember now as a proof of the entire ontology.[1][3]

One actuality is not a Newtonian master clock

In Existential Ground, I separate actuality from the coordinates used to report it. Different clocks can accumulate different elapsed times along different physical paths. Coordinate assignments of simultaneity are not interchangeable with an ontological claim about what obtains. PPD does not entitle me to discard those clock and signal relations or declare one observer’s clock the universe’s master clock.

Equally, drawing a coordinate system does not establish that every represented event is co-actual. A physical account of present resolution must show how the actual clock relations, intervals, and signal constraints are preserved. The ontological distinction identifies the burden; it is not a substitute for doing the physical work.[3]

Where RSI enters

The Resolution State Interface is where I develop a physical implementation of this connected account. EL, FMFG, and EG supply the principal logical and philosophical arguments. RSI examines how a declared physical system can maintain an identity, meet its stability conditions, and undergo change through an explicit account of its participating structure and energy.

RSI keeps the question of present stability distinct from the question of change. Its existence gate and change gate have different jobs. Geometry belongs to the declared carrier, and the energy accounting must remain explicit. Clock readings and other observables must then be connected to that physical organization through a stated measurement relation. The clocks are themselves physical participants, not observers magically standing outside the process.

This is not a shortcut from a philosophical theorem to an experimentally confirmed law. RSI must earn its physical claims through its equations, assumptions, calibrations, and tests. Nor would a successful calculation make every larger philosophical conclusion true automatically. The connection is substantive precisely because those different burdens remain visible.[3][5]

Formal Argument 5.12: Persistent Present Determinism

Existential Logicism: A Logic-Based Engine for Navigating Reality, Chapter 5. Definitions, premises, lemmas, theorem, proofs, and scope remarks follow in their source order.[1]

On narrow screens, long equations scroll horizontally. Each equation can also be focused with the keyboard.

This formal section states the logical core of the Persistent Present pillar. The thesis of Persistent Present Determinism (PPD) is twofold:

  1. Ontologically, there is always exactly one present configuration of reality that obtains. Past and future do not exist as co-equal regions of reality; they exist only as structures (records, memories, models) within the present.

  2. Dynamically, the present is deterministically linked to other possible presents. Given a complete description of the present and the laws that govern it, there is a unique actual continuation. Apparent branching and probabilities describe our epistemic situation and our models, not multiple simultaneously actual futures.

I distinguish the two commitments because the occurrence secured by ERP does not by itself establish either the full present-only ontology or deterministic source sufficiency. The present account supplies an explicit ontology; the dynamic account asks what a complete source must supply to explain a determinate continuation. I state their premises separately so that the conclusion inherits their actual force.

1. States, Occurrences, and the Present

We build on the generic notion of occurrence already used in ERP and ION.

Definition 5.1. Occurrence

Let ℛ\mathcal{R} denote reality in the broadest sense. We use a unary predicate Occ(x)\mathrm{Occ}(x) with the intended reading:

Occ(x)\mathrm{Occ}(x)

which means: “xx is an occurrence, some item, event, or state of reality that actually obtains.”

No assumptions are made here about consciousness or observation. An occurrence is anything that must be there for reality to count as non-empty at all.

We now group occurrences at a given “moment” into a structured whole.

Definition 5.2. Present State

At a declared resolution index nn, a present state SnS_n is the complete structured configuration of obtaining items and relations. Every item with Occn(x)\mathrm{Occ}_n(x) belongs to that configuration, and no additional currently obtaining item is left outside it. A structured configuration includes its relations and capacities, not merely a list of constituents.

I write 𝖲𝗍𝖺𝗍𝖾(Sn)\mathsf{State}(S_n) for the state predicate and 𝒮\mathcal{S} for the state space. Two notational descriptions of the same complete configuration do not constitute two states. An occurrence index identifies its stage of obtaining; it does not turn all indexed configurations into co-actual objects.

The PPD thesis is that, at any time, there is exactly one such SS that obtains. Everything else, past and future realities, appear only as content inside some SS (e.g. as records, predictions, simulations).

Definition 5.3. Present State Realizing Reality

The present-only commitment at index nn is

𝖶PPD(n)⇔∃!S(𝖲𝗍𝖺𝗍𝖾(S)∧∀x[Occn(x)↔x∈S]).\mathsf{W}_{\mathrm{PPD}}(n)\quad\Longleftrightarrow\quad \exists! S\,\left(\mathsf{State}(S)\land \forall x\,[\mathrm{Occ}_n(x)\leftrightarrow x\in S]\right).

The unique configuration is denoted by SnS_n. Membership here includes the structured constituents, relations, and capacities specified in Definition 5.2. The uniqueness is ontological, not a claim that only one description can represent that state.

𝖶PPD(n)\mathsf{W}_{\mathrm{PPD}}(n) records the present-only part of PPD. It does not yet assert finitude, continuing change, or a deterministic law.

This states what the present-only account takes to obtain. Its finitude and dynamic continuation require the further conditions below.

2. Past and Future as Present Structures

The Persistent Present chapter argued informally that past and future do not have the same ontological status as the present. They are only ever encountered as present structures: memories, records, models, expectations. We can express this in the same token/occurrence language used for ERP and Tripp’s Prison.

Definition 5.4. Past/Future Representation

A temporal representation is an occurrence rr that encodes a claim about a non-present time. Formally:

  • rr is an occurrence with Occ(r)\mathrm{Occ}(r).

  • The content of rr, written 𝖼𝗈𝗇𝗍𝖾𝗇𝗍(r)\mathsf{content}(r), is a proposition about “the past” or “the future” (e.g. “there was a supernova”, “there will be a solar eclipse”).

We write 𝖱𝖾𝗉𝖯𝖺𝗌𝗍(r)\mathsf{RepPast}(r) or 𝖱𝖾𝗉𝖥𝗎𝗍𝗎𝗋𝖾(r)\mathsf{RepFuture}(r) when 𝖼𝗈𝗇𝗍𝖾𝗇𝗍(r)\mathsf{content}(r) is about a past or future time, respectively.

Lemma 5.1. Past and future are only presently given

Fix an index nn satisfying 𝖶PPD(n)\mathsf{W}_{\mathrm{PPD}}(n), and let SnS_n be its unique present state. If an agent AA now takes a proposition φ\varphi as a fact about a past or future time, some present token carries that content:

𝖳𝖺𝗄𝖾𝗌𝖠𝗌𝖥𝖺𝖼𝗍n(A,φ)⇒∃r(Occn(r)∧r∈Sn∧𝖼𝗈𝗇𝗍𝖾𝗇𝗍(r)=φ).\begin{aligned} &\mathsf{TakesAsFact}_n(A,\varphi)\\ &\qquad\Longrightarrow \exists r\,\bigl(\mathrm{Occ}_n(r)\land r\in S_n \land\mathsf{content}(r)=\varphi\bigr). \end{aligned}

The token’s actuality does not establish that its content is true.

Proof.

An actual stance requires an actual realizing token: a memory, written record, stored model, report, or other present organization. By Tripp’s Prison, this token belongs to the agent’s operative access; by the present-only premise it belongs to SnS_n. This proves present mediation of the claim. It does not infer present-only ontology from mediation alone; that ontology is the separately stated premise.

□

This lemma captures the “Tripp’s Prison” aspect for time: our entire epistemic situation with respect to other times is mediated by the present configuration. There is no “view from outside the present” from which past and future can be inspected as co-existing objects.

3. Finiteness and Completeness of the Present

PPD also assumes that each present state is finitely and completely configured. Infinity is allowed as an open-ended concept (no upper bound on how many states there could be over all time), but not as an actually realized infinite stack within a single present.

Definition 5.5. Finite Present State

A present state SS is finitely configured when its independently realized distinctions, their organization, and their realized values have a finite complete specification in a fixed adequate descriptive scheme. The scheme must not hide an independently infinite specification inside a single name or an unrestricted exact value. I denote this condition by 𝖥𝗂𝗇(S)\mathsf{Fin}(S).

A finite coordinate count alone is insufficient: the allowed values and the information independently instantiated by them also matter. Conversely, a short formula can refer to an infinite mathematical structure without physically instantiating its members. Neither a word count nor an observer’s ignorance measures the actuality asserted by this condition.

No common upper size, particular lattice, smallest physical unit, or universal information scale is specified here. Distinct finite presents can have different finite amounts of content.

Finite-present premise

For every obtaining present in the account, I retain 𝖥𝗂𝗇(Sn)\mathsf{Fin}(S_n). This is the finite-present premise of PPD, not a consequence of determinacy alone or of the fact that a finite agent can name a state. A physical application must identify the realization and specification conditions that make this premise applicable. The following exclusion is conditional on it.

Lemma 5.2. No Actually Infinite Present

Under the finite-present premise, no obtaining present contains a completed infinity of independently realized distinctions requiring an infinite complete specification.

Proof.

An independently infinite realized specification contradicts 𝖥𝗂𝗇(Sn)\mathsf{Fin}(S_n) as defined in Definition 5.5. Thus it cannot be included in a state satisfying that premise. This inference does not identify mathematical reference with physical instantiation, and it does not derive the premise from a finite representation of the proposed infinity.

□

Remark 5.6. Completeness of the Present

Completeness says that no obtaining constituent, relation, capacity, or value is omitted from the source state. Determinacy says that these obtaining features are definite. Neither statement is a definition of a single-valued future law. In particular, a complete description of a present does not become a proof of deterministic continuation merely by being called complete. The dynamic argument must specify what ties differences between possible outcomes to differences in their complete sources.

4. Laws and the Deterministic Update of the Present

To talk about determinism we need a minimal notion of a lawlike link between present states.

Definition 5.7. Law of Evolution

Fix a law specification LL and a state space 𝒮\mathcal{S}. A general successor rule is

FL:𝒮→𝒫(𝒮).F_L:\mathcal{S}\longrightarrow\mathcal P(\mathcal{S}).

FL(S)F_L(S) is the set of successors admitted by that specification. A coarse model can admit several successors because it omits relevant source detail. A claim about the full law must instead make explicit that the rule captures the physical continuation possibilities of the complete source, not merely an observer’s uncertainty.

Let TT index a represented sequence of resolutions. On its continuing part T+⊆TT^+\subseteq T, a declared successor map σ:T+→T\sigma:T^+\to T identifies the next resolution under consideration, with σ(n)>n\sigma(n)>n and no selected resolution index strictly between them. Linear order alone does not supply an immediate successor. The resolution convention is additional structure, not a conclusion about a universal smallest unit of time. The actual continuation condition is

Sσ(n)∈FL(Sn)(n∈T+).S_{\sigma(n)}\in F_L(S_n)\qquad(n\in T^+).

A terminal index, when included, is outside T+T^+. Nothing here asserts a first index for total reality or that every sequence must continue without end.

This notation keeps two claims separate: one successor occurs in a represented history, and the complete source under a fixed law admits only one successor. PPD’s deterministic claim is the second, stronger claim. It is not established merely by observing that a particular history has one outcome.

Definition 5.8. Deterministic Update

A full law LL supports deterministic update on a continuing source domain 𝒟L⊆𝒮\mathcal D_L\subseteq\mathcal{S} when

∀S∈𝒟L∃!S′∈𝒮S′∈FL(S).\forall S\in\mathcal D_L\quad \exists! S'\in\mathcal{S} \quad S'\in F_L(S).

Write 𝖭𝖾𝗑𝗍L(S)\mathsf{Next}_L(S) for this unique successor. The same complete configuration with the same full law has the same successor configuration, even when represented at different indices. A merely selected path through a multivalued relation does not satisfy this definition.

Once the law is fixed, 𝖭𝖾𝗑𝗍\mathsf{Next} abbreviates 𝖭𝖾𝗑𝗍L\mathsf{Next}_L. It is defined on continuing source states, not automatically on every imaginable configuration.

Contrastive source sufficiency

I use a substantive explanatory premise: a difference between fully realized continuation outcomes must have a differentiating ground in the actual source conditions or the law governing their production. Source closure places every such actual determinant within the complete source and its law, rather than in a real supplier outside total actuality. A proposed law is faithful at this level only when it respects those determinants.

The reason for this demand is explanatory. Listing two outcomes and then saying that one occurs does not explain the contrast between them. Introducing a selection mechanism supplies something to investigate; leaving selection wholly ungrounded abandons that contrastive explanation. I do not identify the abandonment with a contradiction in ordinary set notation.

This premise concerns outcome determination, not just the presence of causes or a law for a distribution. It is stronger than present completeness or causal closure alone. A stochastic description can specify an outcome distribution without satisfying this stronger demand for the realized contrast. Thus the deterministic conclusion below is conditional on source sufficiency; neither ERP nor the observation of one actual outcome independently proves it. The argument develops the deterministic account I defend, rather than claiming an empirical adjudication of every physical law.

Lemma 5.3. No Unresolved Branching

Assume the present-only account, a complete and causally closed source, a faithful full successor rule FLF_L, contrastive source sufficiency, and actual continuation on the declared domain. Then FL(S)F_L(S) has exactly one member for each continuing complete source SS.

Proof.

Actual continuation supplies at least one successor. Suppose the faithful full rule admitted two distinct complete successors S1S_1 and S2S_2 from the identical complete source SS under the identical law LL. Contrastive source sufficiency requires a differentiating actual ground for that outcome difference. Source closure locates it in the source conditions or their law. Both are fixed and complete in the proposed comparison, so no such difference is available. The two-successor claim therefore conflicts with the premises. There is at most one successor, and continuation supplies at least one; hence exactly one.

A set-valued approximation may still list several outcomes. The inference excludes branching from the same full source and law under the stated sufficiency premise, not uncertainty in an incomplete model.

□

The dynamic conclusion now has the required strength: its source fixes the successor, rather than merely acquiring a unique successor after an unexplained selection.

5. Persistent Present Determinism

We can now state PPD as a structural property of reality.

Theorem 5.4. Persistent Present Determinism

Assume:

  1. the occurrence anchor of ERP and the realization-based ION exclusion;

  2. present-only ontology and complete source configuration;

  3. the finite-present premise;

  4. a fixed, faithful full law, causal closure, contrastive source sufficiency, and actual continuation at the declared successor resolutions.

Then the continuing part of the account has the structure of Persistent Present Determinism. Exactly one finite complete present obtains at each index, and

Sσ(n)=𝖭𝖾𝗑𝗍L(Sn)(n∈T+).S_{\sigma(n)}=\mathsf{Next}_L(S_n)\qquad(n\in T^+).

Starting at any selected index, finite iteration gives a local sequence S0,S1,S2,…S_0,S_1,S_2,\ldots for as many successor steps as exist, with Sk+1=𝖭𝖾𝗑𝗍L(Sk)S_{k+1}=\mathsf{Next}_L(S_k). The subscript 00 marks the selected start of that representation, not an asserted first moment of reality.

Counterfactuals or candidates admitted by a coarser model are not additional co-actual presents. The represented sequence itself is not thereby a physically completed inventory of every past and future state.

Proof.

ERP secures the occurrence involved in any performed denial, while ION excludes absolute nonbeing from the realization roles specified in its own argument. Neither result alone supplies the remaining PPD premises. The present-only premise gives one complete configuration at each declared stage; the finite-present premise gives its finite content.

Lemma 5.3, using its explicit sufficiency and continuation conditions, makes the faithful full rule single-valued on the continuing domain. Definition 5.8 therefore yields 𝖭𝖾𝗑𝗍L\mathsf{Next}_L. Applying the declared successor map gives the displayed relation. Finite repeated application proves the corresponding local sequence statement by induction. Continuing it further requires further continuing indices, not an already completed future object.

Thus the joint premise set yields one finite complete actuality with source-determined continuation. The theorem proves that consequence of the defended premises; it does not disguise source sufficiency as a consequence of occurrence alone.

□

6. Free Will, Probability, and the Perspective of Agents

PPD does not deny the lived reality of choice or the usefulness of probabilistic description; it relocates them.

Remark 5.9. compatibilist free will Under PPD

Agents deliberate, imagine alternatives, learn, and act within the obtaining state. Those processes can alter later conditions precisely because they are part of the causal organization. Under the deterministic premise set, a different outcome from the same full law requires a difference in the complete source. Nearby counterfactual states may contain different information, capacities, deliberation, or circumstances and therefore lead to different actions. This preserves caused agency without assigning an agent a power to depart from the identical total source and law.

Remark 5.10. Probabilities as Epistemic Structures

Within the deterministic account, probabilities can represent incomplete information, coarse description, or an agent’s credences about source-determined outcomes. The utility of those descriptions is not denied. Their interpretation here follows the PPD premise set; it is not derived merely from the fact that one outcome is observed. No numerical quantum law, measurement mechanism, or empirical verdict on every probabilistic theory follows from this structural theorem alone.

7. Relation to Other Pillars

ERP supplies the occurrence anchor. ION removes absolute nonbeing from the relevant actuality and source roles under its realization analysis. LEIR identifies what a complete grounding account must supply without confusing a represented ancestry with that ground. PPD adds the finite-present ontology and the explicit source-sufficiency commitment used to derive deterministic continuation.

These results cooperate without becoming interchangeable. The sequence can be causally determinate while an agent’s knowledge of it remains limited, and a local history can be represented without being an additional co-actual world. Later applications may inherit PPD’s deterministic function only with the premises that establish it. That is the positive account: actuality obtains as a complete present, and its continuing changes are carried by the source conditions that determine them.

Questions that clarify the account

Does PPD say reality depends on someone observing it?

No. An occurrence need not be consciously experienced. The complete present includes what is obtaining beyond any particular agent’s awareness. Your epistemic interface concerns how you know; it is not a requirement that the world wait for your attention before it can exist. Definitions 5.1 and 5.2 keep those claims separate.

If everything I know is present-mediated, have I already proved present-only reality?

No. Present mediation identifies how a claim is realized for a finite agent. Present-only ontology identifies what the account takes to obtain. Lemma 5.1 uses that ontology as a stated premise instead of pretending to derive it from mediation. The distinction protects the actual argument: a memory’s occurrence, its accuracy, and the temporal ontology used to interpret it are not one claim.

Does a different clock rate create a different reality?

A difference in a clock’s accumulated reading does not by itself create another co-actual world. The physical relations through which clocks operate have to be accounted for within the same reality. My claim of one actuality is not the claim that every clock shows the same time, and it does not supply a preferred coordinate system by declaration.[3]

Does quantum probability refute PPD or establish free will?

The physical question and the agency question are distinct. PPD interprets probability through its deterministic premise set. The structural theorem does not derive a numerical quantum law or settle every interpretation of a probabilistic theory. A proposed physical implementation must confront that evidence. Separately, an outcome’s being undetermined would not make it an act of authorship. The missing step is still what makes the outcome arise through the person’s reasons and organized capacities. Randomness alone does not supply it.[1][3]

If the future is determined, in what sense is it open?

It is not open in the sense that the identical complete source and law can yield any outcome whatsoever. It is open in the sense that it is not already an obtaining event, and its details can remain unknown to an agent. Your deliberation belongs to the process through which the determined outcome arises. Uncertainty is real without being a power to step outside the source.

Does determinism give an observer perfect foresight?

No. A full source determining a successor is different from a finite agent possessing and computing a complete description of that source. Local predictions can be reliable without becoming an unrestricted view of the whole next state. A forecast that is heard can also enter the conditions it forecasts: the response to the forecast must not be left out. The theorem specifies a relation between states, not an omniscient predictor for an agent inside them.[1][3]

Does the notation imply a first moment, endless succession, or discrete time?

No. The formal argument declares the resolution indices under consideration and their successor relation. A selected starting index is not the beginning of all reality. Finite iteration extends for the successor steps that exist; it does not establish an already completed infinity. The convention also does not prove a universal smallest unit of time. Those questions require their own arguments.

Does PPD answer why actuality is dynamic at all?

PPD develops a present-only account with source-determined continuation on its declared domain. It does not turn the notation for continuation into a separate source of change. In Existential Ground, I distinguish the actuality of change, the mechanisms of particular changes, and the stronger question of whether every coherent self-grounding actuality must be dynamic. The physical mechanisms and the stronger universal claim carry further burdens. Keeping those questions distinct does not erase the changes through which this question is being asked.[3]

The distinctions to keep in view

Present state
The complete obtaining configuration, including constituents, relations, capacities, and realized values. It is not merely an observer’s description of that configuration.
Temporal representation
A present occurrence carrying content about another time. Its actuality does not make its content true or make the represented event co-actual.
Finite configuration
An actuality with a finite complete specification of what is independently realized. A finite count of coordinate labels is not, by itself, enough.
Contrastive source sufficiency
The requirement that different fully realized outcomes have a differentiating ground in their actual source conditions or governing law. This is the substantive explanatory premise used in the deterministic argument.
Determinism
The same complete source under the same faithful full law admits the same unique successor on the continuing domain. Selecting one realized path after the fact is a weaker claim.
Caused agency
The real activity of a person whose reasons, capacities, deliberation, and action participate in producing consequences. It is neither contra-causal authorship nor the fatalistic removal of the person from the explanation.

For the wider vocabulary, see EL Definitions.

Sources and further reading

  1. Matthew Tripp Zejda, Existential Logicism: A Logic-Based Engine for Navigating Reality. Chapter 5, “Persistent Present Determinism,” especially §§5.1–5.11 and Formal Argument 5.12. The full formal treatment above retains Definitions 5.1–5.5 and 5.7–5.8, Lemmas 5.1–5.3, Theorem 5.4, and Remarks 5.6, 5.9, and 5.10.
  2. Matthew Tripp Zejda, Existential Logicism: A Logic-Based Tool for Navigating Reality. Chapter 5 provides the continuous reading treatment of the Persistent Present, records, determinism, consciousness, and the consequences for lived agency.
  3. Matthew Tripp Zejda, Existential Ground: The Undeniable Foundation Beneath Reality, Time, God, and Life. Chapters 6–14 develop finite actuality, grounding, temporal representation, resolution, physical accounting, RSI, and maintained identity. Chapters 15–18 connect those results to ultimacy, agency, accountability, fear, and finite significance. Public Appendix A supplies the corresponding formal arguments. Explore Existential Ground.
  4. Matthew Tripp Zejda, Finite Mind, Finite God. Chapters 1–4: finite knowing, the Human Interface Thesis, the Fairness Clause, and the Salvation Paradox. These arguments develop the access, capacity, and belief conditions that an account of responsibility cannot simply bypass.
  5. Matthew Tripp Zejda, Resolution State Interface: Introduction to Universal Relativity. Parts 1–2 explain the physical roles of system boundaries, carriers, energy accounting, stability, and change; Part 7 sets out the evidence and calibration discipline. RSI supplies the physical development, not a substitute for the logical premises of PPD.