Showing posts with label Goedel. Show all posts
Showing posts with label Goedel. Show all posts

Thursday, December 25, 2025

On Intelligibility, Determinability, and the Logos Who Makes Meaning Possible

For many years I have been puzzled by a question that refuses to dissolve: how are transcendental arguments possible at all? How can one speak meaningfully about the conditions for the possibility of experience, knowledge, or formalization without already presupposing what one claims to ground?

Logic and mathematics have sharpened this question rather than resolved it. Formal systems are extraordinarily powerful. They model relations, generate derivations, and articulate vast domains of structure. Yet the more rigorous they become, the more clearly they reveal something they cannot contain: the space in which they are intelligible as systems in the first place.

Gödel made this unavoidable. A sufficiently expressive system can represent its own syntax, yet it cannot secure from within the distinction between truth and provability. Even when meta statements are themselves formalized, the recognition that the formalization is adequate occurs at a higher level still. The meta recedes as it is captured. What is gained in rigor is accompanied by a renewed excess.

This excess is not merely epistemic. It is not simply a limitation of human cognition or a gap in symbolic technique. It belongs to intelligibility itself. Formal systems presuppose a horizon in which interpretation, relevance, adequacy, and meaning are possible at all. That horizon is not a theorem. It is the condition under which theorems can appear as meaningful.

Here a structural parallel becomes visible. The transcendental I cannot be thought as an object without ceasing to be transcendental. An I that is thought is already a higher order self, something represented rather than that by virtue of which representation occurs. The condition of objectivity cannot itself be an object in the same register without contradiction. This is not a contingent limitation. It is structural.

Something analogous occurs with intelligibility itself. Once a teleological space of meaning is determined, named, or even ontologically affirmed, that determination presupposes another horizon within which it is intelligible as a determination. The sine qua non of the determined as determined is not a further determination, but an indeterminate field that allows for determinability. The indeterminate does not issue in form. It makes form possible.

This is the insight Kant reached most clearly in the Third Critique. Determining judgment subsumes particulars under given rules. Reflecting judgment seeks the rule under which particulars may be unified without possessing that rule in advance. Reflecting judgment operates within a teleological space, oriented toward coherence and purposiveness without algorithmic closure. This space is not subjective whim. It is the condition under which object languages can be coordinated at all.

Seen in this light, intelligibility is teleological not because it aims at a humanly imposed end, but because it orients formal structures toward meaning without compelling their form. Formal systems are not self originating. They are drawn into being by the possibility of meaning that precedes them. This possibility is real, but it is not itself formal. It orders without determining. It attracts without necessity.

This is why attempts to algorithmize theory change inevitably fail. To formalize the rules of revision presupposes prior judgments of relevance, adequacy, and success that exceed the system being revised. The ladder by which a system ascends cannot be retained within the system without contradiction. The indeterminate that allows for determinability cannot be collapsed into determination without loss.

Here the question of Logos re emerges with new clarity. Logos is not first a word spoken, nor an idea grasped, nor a system constructed. Logos names that by virtue of which meaning is possible at all. It is the order that permits articulation without exhausting itself in articulation. It is the ground that calls without coercing, that grants intelligibility without dictating form.

“In the beginning was the Logos” is therefore not a temporal claim but an ontological one. In the beginning was that by virtue of which anything could be said, meant, or understood. Formal systems, scientific theories, languages, and even our most advanced machines live within this space. They do not create it. They respond to it.

To remember this is not to retreat from rigor but to fulfill it. Logic itself teaches that intelligibility cannot be fully objectified without remainder. That remainder is not a defect. It is the sign that meaning is grounded more deeply than any system can contain.

On Christmas, it is fitting to recall that the Logos who grounds intelligibility did not abolish finitude, form, or history, but entered them. The Word became flesh. Meaning did not collapse into mechanism, nor did transcendence remain aloof. The determinate was upheld by the indeterminate, and the finite was made capable of bearing what it could not generate on its own.

This is not sentiment. It is metaphysics. And it is, perhaps, the deepest reason theology and philosophy still find themselves speaking about the same thing—if only we are patient enough to listen.

Disputatio XXIIIa: De Sermone Meta-Theoretico et Intelligibilitate Formali

 On Meta-Theoretical Discourse and Formal Intelligibility

Why an Intermezzo?

This disputation is designated an Intermezzo because it does not advance a new doctrinal locus but clarifies the conditions under which all doctrinal discourse is intelligible. It marks a structural pause in the argument, making explicit what has thus far been presupposed: the irreducible horizon of intelligibility within which formal, scientific, philosophical, and theological speech can occur. By naming this horizon, the Intermezzo secures the transition from questions of meaning and participation to questions of order and law.

Quaeritur

Utrum intelligibilitas formalis systematum logicorum et mathematicorum praesupponat discursum metalinguisticum irreducibilem ad linguam obiectivam; et utrum hic excessus non solum epistemicus sed ontologicus sit, ita ut ipsa possibilitas significationis in rebus fundetur; et utrum hic fundus intelligibilitatis recte intelligatur ut spatium teleologicum, quod systemata formalia non efficiunt sed quod ipsa attrahit et constituit.

Whether the formal intelligibility of logical and mathematical systems presupposes a metalinguistic discourse irreducible to object language; and whether this excess is not merely epistemic but ontological, such that the very possibility of signification is grounded in things themselves; and whether this ground of intelligibility is rightly understood as a teleological space which formal systems do not produce but which draws them forth and constitutes them.

Thesis

Formal systems do not generate intelligibility. They presuppose it. Every object language capable of truth conditions relies upon a meta-discourse that cannot be fully internalized without loss of the very properties that render the system intelligible. This excess is not merely epistemic but ontological. The possibility of meaning precedes formalization and belongs to the structure of reality itself.

This irreducible space of intelligibility may be described as teleological: not as an imposed purpose or subjective projection, but as the permanent possibility of meaningful determination that draws formal systems into being and coordinates their interpretation. Metalanguage thus testifies to an order of meaning that no formal system can exhaust, yet without which no formal system can be what it is.

Locus classicus

Gödel, Über formal unentscheidbare Sätze (1931)
“Es gibt innerhalb eines jeden hinreichend mächtigen formalen Systems wahre Sätze, die innerhalb dieses Systems nicht beweisbar sind.”

“There are, within every sufficiently powerful formal system, true propositions that cannot be proven within that system.”

Gödel’s result is not merely technical. It reveals that truth outruns formal derivability and that the conditions for recognizing truth are not fully capturable by the system whose truths are in question.

Peirce, Collected Papers 5.121
“Thirdness is the mode of being of that which is such as it is, in bringing a second and a first into relation.”

Peirce’s category of Thirdness names mediation, lawfulness, and intelligible continuity. It points beyond dyadic relations to the conditions under which relations can be meaningful at all.

Aristotle, Metaphysics Γ.4 (1006a)
τὸ αὐτὸ ἅμα ὑπάρχειν τε καὶ μὴ ὑπάρχειν ἀδύνατον

“It is impossible for the same thing to belong and not belong to the same thing at the same time.”

The principle of non-contradiction is not derived from a system; it governs the possibility of systemhood itself.

Explicatio

The inquiry into metalanguage arises not from philosophical curiosity but from the internal limits of formalization itself. Whenever a formal system is sufficiently expressive to represent arithmetic, syntax, or inference, it becomes possible to ask questions about the system as a system: about its consistency, its completeness, its interpretability, and its truth conditions. These questions are not posed within the object language alone but from a vantage that speaks about the system. This vantage is meta-discourse.

Gödel’s incompleteness theorems make this structural distinction unavoidable. The encoding of syntactic relations by Gödel numbering allows statements about provability to be represented within arithmetic. Yet the recognition of undecidable truths still requires a standpoint that distinguishes truth from provability. That distinction is not eliminable. Even when meta-statements are formalized, the act of recognizing the adequacy of that formalization occurs at a higher level still. The meta recedes as it is formalized. What is gained in rigor is offset by a renewed excess.

This phenomenon is not accidental. It reveals something essential about intelligibility itself. Formal systems can model relations, generate derivations, and define extensions. What they cannot do is generate the conditions under which their own operations are meaningful. The possibility of interpretation is not a theorem of the system; it is the horizon within which the system can appear as intelligible at all.

This horizon is not merely epistemic. It is not simply a limitation of human cognition or a defect in symbolic manipulation. It belongs to the nature of formal structures themselves. A system that could exhaustively account for its own intelligibility would collapse the distinction between object language and metalanguage, thereby eliminating the very conditions that make interpretation possible. Meaning would be flattened into mechanism, and truth into derivability.

To say this is not to disparage formal rigor. On the contrary, it is formal rigor that reveals the necessity of this distinction. Logic itself teaches that intelligibility cannot be fully objectified without remainder. The meta is not an embarrassment to formalism; it is its condition.

This irreducible excess may be clarified by reconstructing Peirce’s notion of Thirdness. Thirdness is not merely a category of mediation within thought. It names the lawful continuity that makes relations intelligible. It is that by virtue of which signs signify, laws govern, and inference is possible. In this sense Thirdness is not added to dyadic relations; it is what allows relations to be relations rather than brute collisions.

What Peirce names phenomenologically, we may here name ontologically. The intelligibility that coordinates formal systems is not imposed from outside but belongs to the structure of reality. Formal systems are not self-originating. They are drawn into being by the possibility of meaning that precedes them. This possibility is not itself formal, yet it is not indeterminate. It orders, constrains, and directs formalization without being reducible to it.

Whitehead’s notion of prehension may serve as an analogy. Prehensions are not actual entities but the permanent possibilities of actualization. They are not events but the conditions under which events can occur meaningfully. In an analogous way, intelligibility is not itself a formal structure but the permanent possibility of formal meaning. It is that by which formal systems can be interpreted, related, and evaluated.

This is why attempts to algorithmize theory change inevitably fail. To formalize the rules by which theories are revised presupposes a prior understanding of relevance, adequacy, and success—concepts that themselves resist algorithmic capture. The criteria of revision always exceed the system being revised. The ladder by which the system ascends cannot be retained within the system without contradiction.

Wittgenstein’s Tractatus gestures toward this limit. What cannot be said must be shown. Yet showing is not mute. It is a mode of intelligibility that precedes explicit articulation. There is no seeing that could not, in principle, be spoken—but the speaking presupposes the very space it attempts to articulate. The ladder cannot be climbed unless it already stands.

Kant’s distinction between determining and reflecting judgment clarifies this further. Determining judgment subsumes particulars under given rules. Reflecting judgment seeks the rule under which particulars may be unified. The former may be formalized. The latter resists algorithmic closure. Reflecting judgment operates within a teleological space: it seeks coherence, purposiveness, and meaning without presupposing a determinate schema. This space is not subjective whim. It is the condition under which object languages can be coordinated at all.

Thus intelligibility is teleological not because it aims at a humanly imposed end, but because it orients formal structures toward meaning. Formal systems are “pulled into being” by this space. They do not emerge ex nihilo. They are responses to a prior call of intelligibility that is written into the structure of reality itself.

Objectiones

Ob I. If intelligibility exceeds formal systems, then rigor is compromised and mathematics collapses into metaphysics.

Ob II. Metalanguage reflects only human cognitive limitation, not any ontological feature of reality.

Ob III. Teleology introduces purpose into domains governed solely by efficient causality.

Ob IV. If intelligibility cannot be formalized, then it cannot be known or discussed without contradiction.

Responsiones

Ad I. Rigor is not compromised but clarified. Formal precision reveals the limits of formalization. To acknowledge these limits is not to abandon rigor but to respect its conditions.

Ad II. The recurrence of metalanguage is not contingent upon human psychology. It arises from the structure of formal systems themselves. Any intelligence capable of truth would confront the same distinction.

Ad III. Teleology here names orientation toward meaning, not extrinsic purpose. It does not replace efficient causality but grounds the intelligibility of causal explanation.

Ad IV. Intelligibility can be discussed analogically and architectonically without being reduced to an object language. Such discourse does not eliminate the meta; it inhabits it knowingly.

Nota

This disputation functions as an intermezzo within the Disputationes Theologicae. It neither advances a new doctrinal locus nor resolves a previously posed theological question. Rather, it renders explicit the conditions of intelligibility presupposed by everything that precedes and everything that follows.

Up to this point, the inquiry has examined language, truth, relation, participation, causality, and manifestation within the horizon of theological discourse. What has remained implicit, however, is the space within which such discourse can appear as intelligible at all. Here that space is named. The question is no longer what theology says, but what must already be the case for saying anything meaningfully.

The significance of Kurt Gödel is therefore not merely technical. His results disclose a structural excess that no formal system can eliminate: truth outruns derivability, and intelligibility cannot be fully internalized without remainder. Logic thus bears witness to a distinction it cannot overcome. Far from displacing metaphysics, formal rigor summons it by revealing the conditions it cannot itself supply.

The appeal to Charles Sanders Peirce clarifies the ontological character of this excess. Thirdness is not invoked here as a semiotic category but as the mode of being through which relations are intelligible rather than merely given. It names lawful continuity, mediation, and normativity as features of reality itself. Formal systems do not generate these features. They presuppose them.

Likewise, the principle articulated by Aristotle does not arise from within a system but governs the very possibility of systemhood. Non-contradiction is not an axiom among others. It is the condition under which axioms can function at all. In this sense, logic testifies to an order it inhabits but does not constitute.

What emerges is an account of intelligibility as teleological. This does not introduce purpose as an extrinsic aim or subjective projection. It names the orientation of reality toward meaning, coherence, and determination. Formal systems are drawn into articulation by this orientation. They are responses to intelligibility, not its source.

This recognition decisively blocks both reductionism and voluntarism. Meaning is neither manufactured by minds nor imposed by decree. It is discovered as a feature of reality that precedes formalization and renders it possible. The humanities and the formal sciences converge here, not in method but in vocation: both seek the conditions under which truth can appear as truth.

The theological implications are now unavoidable, though they remain deliberately unasserted. If intelligibility belongs to the structure of reality, then meaning is not accidental. If meaning is not accidental, then the question of Logos presses forward, not as a speculative hypothesis, but as the name for the ground of intelligibility itself. The inquiry is thus poised to move from the conditions of meaning to the structures of order through which meaning abides.

Determinatio

  1. Formal systems presuppose intelligibility and do not generate it.

  2. No sufficiently expressive system can internalize the conditions of its own truth.

  3. The distinction between object language and metalanguage is irreducible.

  4. This irreducibility is ontological, not merely epistemic.

  5. Intelligibility constitutes a teleological space of meaning.

  6. Formal systems are drawn into being by this space rather than constituting it.

Transitus 

If the intelligibility of formal systems presupposes an irreducible metadiscursive horizon, and if this horizon belongs not merely to cognition but to the being of things themselves, then intelligibility cannot be treated as an incidental feature of formalization. It must instead be understood as a stable orientation of reality toward meaning.

Yet intelligibility that remains merely excess would be indeterminate. If meaning is to be communicable, repeatable, and answerable to truth, then it must assume a form capable of persistence without exhaustion. The question therefore presses beyond the conditions of meaning toward the mode by which meaning abides.

What is now required is an account of order that neither collapses into mechanism nor dissolves into abstraction. Such order cannot arise from formal systems alone, nor can it be reduced to patterns of occurrence. It must instead name the way intelligibility attains stability within reality itself.

We are therefore compelled to consider law. Not law as a descriptive regularity, nor as an axiom internal to a formal system, but as a mode of being through which intelligibility is sustained, communicated, and made normative.

Accordingly, the inquiry now turns to the nature of law and regularity, and to the question whether the order they express belongs merely to phenomena or to the ontological ground of intelligibility itself.

Friday, October 24, 2025

Disputatio XXVIII De Systemate Incompleto et Veritatis Factore Infinito

On the Incomplete System and the Infinite Truthmaker

Quaeritur

Quaeritur utrum systema finitum, si sit consistent, possit continere veritatem suam propriam, an vero, iuxta theoremata incompleti Gödeliana, omnis ordo finitus necessario referat ad veritatis fontem extra se—ad infinitum veritatis factorem.

It is asked whether a finite system, if consistent, can contain its own truth, or whether—according to Gödel’s incompleteness theorems—every finite order must necessarily refer to a source of truth beyond itself, to an infinite truthmaker.

Thesis

Gödel’s incompleteness results demonstrate formally what metaphysics has long intuited: The finite cannot ground the totality of its own truth. Every consistent formal system sufficient for arithmetic contains true statements it cannot prove. Hence, truth exceeds derivation, and the complete explanation of truth demands participation in something transcending the finite system.

Locus Classicus

“Great is our Lord, and abundant in power; his understanding is infinite.”
 Psalm 147:5

Aquinas comments: “Intellectus divinus est infinitus, quia adaequat veritatem ipsius Dei, quae est infinitum esse.” (STI.14.6.) The divine intellect alone comprehends all truth as being identical to being. Human or finite systems of reason, by contrast, express truth participatively, that is, as reflections of the infinite intellect. Thus, the logic of finitude corresponds to the metaphysics of participation.

Explicatio


I. The Context of Gödel’s Discovery

In 1931, 25 year-old Kurt Gödel, an Austrian logician, published “Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme” (Monatshefte für Mathematik und Physik 38, 1931). His goal was to investigate the limits of formal systems such as the Principia Mathematica by Whitehead and Russell, which sought to derive all mathematical truths from a finite set of axioms through mechanical rules of deduction.

To understand the significance of this, we must review some key notions. A formal system may be thought of as a rigorously defined language governed by rules. While its syntactic component consists of symbols and derivations its semantic component is concerned with truth and meaning about numbers or other entities to which it refers. For such a system to be a satisfactory foundation of mathematics, it must have two crucial properties:

  1. ConsistencyNo contradiction can be derived within the system.

  2. Completeness: Every true statement expressible in the system can be derived from the system's axioms.

Gödel’s work proved that these two properties cannot coexist in any finite system capable of expressing arithmetic.

II. Gödel’s First Incompleteness Theorem

Gödel showed in this proof how to assign to each formula and proof a numerical code, a process that is now called Gödel numberingBy this ingenious device, statements about formulas could become statements about numbers. He then constructed a sentence G that effectively says of itself,

“This statement is not provable within this system.”

If the system is consistent, it cannot prove G, for to do so would render it inconsistent, that is, it would prove a falsehood. Yet if the system is consistent, G is in fact true, since its unprovability makes the assertion it contains correct. Hence, G is true but unprovable within the system. The upshot of this is this: No consistent, sufficiently expressive finite system can be complete. Simply put, there will always exist true propositions that escape its derivations.

III. Gödel’s Second Incompleteness Theorem

Gödel then proved a deeper corollary, that no consistent system can prove its own consistency. But to show that its axioms are non-contradictory, one must appeal to a meta-system, to a higher language standing outside the system itself. Hence, every finite logical order depends on another for its assurance of truth and coherence.

IV. Philosophical Significance

Gödel’s theorems thus reveal a structural transcendence of truth over formal expression. They are not merely mathematical curiosities but demonstrations of a universal condition of finitude, that truth always surpasses the framework that tries to contain it. Every closed system that seeks to explain itself without remainder either collapses into contradiction or appeals to a higher order.

Metaphysically, this mirrors the ancient insight that the finite requires the infinite as its truthmaker. The correspondence between logical form and ontological order is not accidental but structural: just as a formal system needs a meta-system to ground its truth, so the finite world needs a transcendent act of being to ground its reality.

What Gödel discovered formally, metaphysics already discerned existentially: veritas non est intra ordinem finitum nisi per participationem veritatis infiniti.

Obiectiones

Ob I. Formalists like David Hilbert hold that the incompleteness theorems apply only to mathematical systems, not to reality. They concern symbols and proofs, not the metaphysical order of being.

Ob II. Scientific empiricism argues that science does not need to be “complete” in this logical sense. Explanatory power depends on observation, not on formal derivation. Thus, Gödel’s results have no bearing on physical intelligibility.

Ob III. Reductive naturalists claim that the analogy between formal systems and the finite world is metaphorical, and thus to move from logical incompleteness to ontological dependence is an illicit category jump.

Ob IV. Skeptics of many kinds opine that Gödel’s theorem requires arithmetic within a system, and that nature is not a formal calculus. Accordingly, it is meaningless to say that the universe is “incomplete” in the Gödelian sense.

Ob V. The cautious theologian claims that appealing to Gödel to prove divine necessity risks confusing logic with revelation. God’s infinity is not a corollary of syntax but a matter of faith.

Responsiones

Ad I. Gödel’s theorems indeed concern formal systems, yet they express a universal relation between expression and truth. Wherever truth is represented within a finite structure, that structure cannot exhaust it. The logical limit mirrors an ontological condition.

Ad II. Scientific explanation presupposes coherence and consistency within its theories. Gödel shows that such coherence cannot be self-guaranteed; it must be received from a higher frame. Hence, the dependence of empirical science on deeper intelligibility is reinforced, not diminished.

Ad III. The analogy is legitimate when carefully drawn. Formal systems model the relation of expression to truth; the finite world models the relation of being to its source. In both, self-sufficiency proves impossible; participation becomes the only path to completeness.

Ad IV. The universe is not a calculus, yet our reason reflects its structure through logic.To say that the world is “Gödelian” is not to mathematize it but to recognize that finitude, even in its most abstract forms, cannot close upon itself.

Ad V. The appeal to Gödel is not a theological proof but a formal analogy. It illuminates by example what theology asserts by revelation: that all truth in the finite is truth by participation in the Infinite Word.

Nota

Gödel’s theorem exposes not merely a boundary of formal systems but a metaphysical structure, for the finite, in order to remain consistent, must remain open to what it cannot contain. Incompleteness is thus not a defect but the mark of dependence. The object system’s unprovable truths are signs of an order beyond itself, an order upon which its very coherence rests.

In theology, this structure mirrors creation’s relation to its Creator. The creature is a consistent finite system whose truth is guaranteed only by participation in the infinite. Every finite logos, to be true, must be grounded in a Logos that transcends it; every rational discourse presupposes an unspoken act that makes discourse possible.

Hence Gödel’s discovery becomes a theological axiom: truth cannot be self-enclosed. Simply put, there must exist an actus essendi veritatis, an infinite truthmaker, by whom the finite is both comprehensible and incomplete. Logical incompleteness is thus a formal echo of the metaphysical participation of the finite in the divine, and the incompleteness of the finite itself. It reveals that closure is illusion, and openness to transcendence is the very condition of truth.

Determinatio

From the foregoing it is determined that:

  1. Gödel’s incompleteness theorems formally demonstrate the incapacity of the finite for self-completion. Every consistent system depends upon truths it cannot contain and upon a meta-system it cannot itself generate.

  2. Truth transcends formal derivation. Just as no calculus can produce all truths of arithmetic, no finite ontology can account for its own intelligibility.

  3. Consistency requires transcendence. The assurance that a system is non-contradictory always arises from a higher standpoint.
    Ontologically, this implies that the finite world’s coherence depends on an Infinite act of being.

  4. The Infinite functions as the universal truthmaker. The meta-system for logic corresponds analogically to the Creator for creation: the necessary being in whom all contingent truths are grounded and from whom their coherence flows.

  5. Therefore, Gödel’s result, though mathematical in form, reveals a metaphysical truth: the finite is intelligible only by participation in the Infinite. The world’s incompleteness is not deficiency but sign — a structural openness to the Infinite intellect whose understanding is unbounded.

Hence, the incompleteness of systems becomes a formal witness within reason to the metaphysical participation of all truth in God — in quo sunt omnes thesauri sapientiae et scientiae absconditi (Colossians 2:3).

Transitus ad Disputationem XXIX

If every finite order requires an infinite truthmaker, how can finite language and models still signify truly? The following disputation explores the paradox of internal and external truth uncovered by the Löwenheim–Skolem theorem, showing how the structure of theology mirrors the relation between truth in a model and truth about it. 

We turn, therefore, to Disputatio XXIX: De Paradoxo Löwenheim–Skolemiano, wherein we examine how truth within a model and truth about that model diverge, and how this divergence reveals the theological relation between faith’s internal coherence and the infinite reality of God.