r/PhilosophyofMath

▲ 3 r/PhilosophyofMath+1 crossposts

Is this normal?

Whenever I learn math, my mind gets overloaded with symbols, some symbols that I probably should know and just have decayed in my memory, and some that are new but I become intimidated by. If I ever try to follow the logic of a definition, like the definition of a derivative, and I try to follow the algebra that makes the concept makes sense, I just get stressed out and lose my train of thought. This seems to happen only in math, I haven’t studied physics but I assume the process would be similar as well. I try to ask ChatGPT what this means and if I should start engineering in September, but since it’s an LLM it just gives me a different approach or answer every time, so there’s no real way I can diagnose whether this is a normal experience. Am I trying to learn math in an overly difficult way? I hear a lot of math or engineering majors do “plug and chug”, they don’t need to know why a formula works, they just need the cue of when to use the formula and then use it to get an answer. Maybe I’m learning math in a way that’s expects inherent meaning in the first principles, I was a philosophy major for a year and my interests drifted that way during high school, but I want to try engineering, and it just seems like I have a much harder time studying these courses compared to my peers. My grades in a few precalc courses I’ve taken weren’t bad, but I never actually retained the definition of a function, or some algebra stuff, I had to teach myself high school trig because I just never learned it (COVID years). I just don’t know if this is a common experience and I can just adapt to this over time or if it’s always going to be a very high mental tax and stress loop that I’ll always face, because it has seemed that way for the last few months. I’ve had to drop calc 1 twice because of this
.

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u/aac__213 — 8 hours ago
▲ 2 r/PhilosophyofMath+5 crossposts

The Pentivium Irreducibles: A Geometry of Thought

Opera Rubra uses the Pentivium as a working geometry of thought.
The old Trivium gives us Grammar, Logic, and Rhetoric: how to name, reason, and speak. But thought does not end at speech. It has to become action, receive consequence, and return to the person who is aware, choosing, and willing.
So the Pentivium has five nodes:

Grammar — Identity, Pattern, Name
Grammar is the contact point. It asks: What is this? What pattern does it belong to? What do we call it?
Without Grammar, thought has no object. You are reacting to fog.

Logic — Syntax, Semantics, Consequence
Logic asks how things connect. Syntax is structure. Semantics is meaning. Consequence is what follows.
Without Logic, names float around without lawful relation.

Rhetoric — Ethos, Pathos, Logos
Rhetoric is communicable force. Ethos asks who is speaking. Pathos asks what is being moved. Logos asks whether the speech carries reason.
Without Rhetoric, truth may exist but fail to enter the public world.

Praxis — Intention, Execution, Feedback
Praxis is enacted thought. Intention is aim. Execution is action. Feedback is correction from reality.
Without Praxis, thought stays ornamental. It never risks contact with the world.

Presence — Awareness, Agency, Willpower
Presence is the living center. Awareness sees. Agency can act. Willpower sustains direction.
Without Presence, the system becomes mechanical: words, arguments, and actions with no sovereign subject behind them.

The geometry is simple.
There are five outer nodes. Each node contains three irreducibles, giving fifteen basic instruments of analysis.
Each node is a triangle, not a dot.
For example, Praxis is not merely “doing.” Praxis requires intention, execution, and feedback. If you have intention without execution, you have fantasy. If you have execution without intention, you have drift. If you have execution without feedback, you have repetition without learning.

The same applies to every node.
Grammar collapses if identity, pattern, or name is missing. Logic collapses if structure, meaning, or consequence is missing. Rhetoric collapses if speaker, emotional movement, or reason is missing. Presence collapses if awareness, agency, or willpower is missing.
Then the five nodes form a larger shape.

The ring shows the living cycle:
Grammar names reality.
Logic orders it.
Rhetoric communicates it.
Praxis tests it.
Presence receives the result and chooses again.
That is the basic motion.
But the Pentivium is not only a circle. It is also a star.

The pentagon shows sequence.
The pentagram shows cross-checks.

Grammar must be checked against Praxis. Are our names actually working in the world?
Logic must be checked against Presence. Is the reasoning serving awareness and agency, or has it become an abstract machine?
Rhetoric must be checked against Grammar. Are the words still attached to what is real?
Praxis must be checked against Rhetoric. Does the action communicate the intended meaning, or does it create a different message?
Presence must be checked against Logic. Is the will coherent, or merely intense?

This is where the geometry becomes useful.
The Pentivium does not just ask, “Is this true?” It asks, “Where is the truth breaking?”

A person can have strong Grammar and weak Logic. They see details but cannot connect them.

A person can have strong Logic and weak Rhetoric. They reason well but cannot speak in a way others can enter.

A person can have strong Rhetoric and weak Praxis. They sound powerful but do not enact what they say.

A person can have strong Praxis and weak Presence. They are effective but captured by habit, institution, appetite, or command.

A person can have strong Presence and weak Grammar. They feel sovereign but cannot accurately name the world they are standing in.
This also applies to institutions, governments, relationships, arguments, religions, businesses, and technologies.

A broken society often does not fail everywhere at once. It fails geometrically.
It names things falsely.
It reasons from corrupted premises.
It speaks persuasively without truth.
It acts without correction.
It strips people of awareness, agency, and will.
Opera Rubra is the red work of repairing that process.

The Pentivium irreducibles are not meant to be decorative categories. They are diagnostic tools. You can take any claim, policy, relationship, system, or argument and ask:

What is its Grammar?
What is its Logic?
What is its Rhetoric?
What is its Praxis?
What kind of Presence does it produce or require?

Then you can go deeper:
What identity is being named?
What pattern is being assumed?
What consequence follows?
Whose ethos is trusted?
What emotion is being moved?
What intention is declared?
What execution actually happens?
What feedback is ignored?
What awareness is expanded or suppressed?
What agency is created or removed?
What willpower is being disciplined, exploited, or destroyed?

That is the geometry.
Five nodes.
Three irreducibles each.
A ring for motion.
A star for correction.
A lattice for deeper diagnosis.

The point is not to memorize terms. The point is to create a disciplined way of seeing where thought becomes reality, where reality corrects thought, and where human beings either gain or lose agency in the process.

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u/Historical_Try_2179 — 3 days ago
▲ 1 r/PhilosophyofMath+1 crossposts

Basic Arithmetic is Recursion; Number as Recursive 0; Identity as Relation; Number as Spatial Process

Basic Arithmetic is Recursion; Number as Recursive 0; Identity as Relation; Number as Spatial Process

There is addition, the addition of addition is multiplication, the multiplication of multiplication is exponents; there is substraction, the subtraction of subtraction is division, the division of division is roots.

A postive number is addition by nature, a negative number is subtraction; operator and operand are reduced to the single distinction of a postive and/or negative number.

  1. +X+Y = X+Y

  2. +X-Y = X-Y

  3. -X+Y = Y-X

  4. -X-Y = -X+-Y

  5. +X++Y = X×Y

  6. +X--Y = X/Y

  7. --X+Y = Y/X

  8. -X---Y = -X/-Y

  9. ---X-Y = -Y/-X

  10. +X++++Y = X^Y

  11. +X----Y = YrtX

The identity of number thus is the distinction of it by the limits of itself. In these respects number can be reduced purely to spatial events by degree of a non-axiomatic state where distinction is the emergent pattern.

0 can be observed simultaneously as a 0d point for this exercise: ●

0 is nothing on its own terms; ●

The recursion of ● results in the distinction of ●, by contrast to itself, while simultaneously being self-contained as its own limit: ●●

The distinction of ●● is 1, this can be seen in a line segment.

●●● is 2, with a corresponding -1 that results by degree of the absence of unity, the space of difference as negative space between 1 and 2.

●●●● is 3 with a corresponding -2.

So on and so forth.

Thus with the recursion of 0 as ● comes the corresponding natural numbers.

Addition is compounding of line segments; subtraction is ghs compounding of a postive and negative line segment.

Fractions are effectively the contraction of one set of line segments to another, multiplication is the inverse expansion of one set of line segments through another.

What remains is linear folding at the primitive level. Corresponding symmetrical n-d forms observes this at a more advanced level.

In these respects each line segment is a relative variable as it contains further line segments, each 0 sequence is a variable as it contains further 0 sequences; in these respects all finite numbers are finite infinities; all irrational numbers are effectively a process of non-terminating recursion relative to a terminated recursion.

This recursivd nature results in the collapse of numbers into sets when observed from another angle.

What remains is number as process of recursive 0. Basic arithmetic is the relation of recursive 0 sequences (line segments or n-d forms). In these respects identity is reduced to relation prior to equality thus what remains of identity is pure pattern as distinction.

All numbers are thus inseperable from patterns themselves, by degree of all degrees of recursion containing the symmetry of ●● at all levels of the sequence and correspondingly resulting in ●● as a fixed point thus results in further scaling of fixed points (●●●, ●●●●, etc.)

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u/Void0001234 — 6 days ago

What Makes a Pairing Count?

Diagonalization, Baire category, and measure theory all show the same thing: an N-indexed presentation does not exhaust the admitted field of total binary profiles. So the diagonal witness is not the source of the result; it is one certificate.

The prior issue is what makes a pairing verdict-bearing.

For N and the evens, direct overlap leaves odd residue in N. The doubling map pairs every natural with an even. The sets do not change; only the authorized comparison relation does.

Cardinality resolves this by rule: one completed total bijection over the declared domains overrides containment, residue, order, and generative difference.

Cantor’s theorem then proves non-exhaustion inside that prior protocol.

The theorem proves non-exhaustion; cardinality classifies it. Why call that a discovery of magnitude rather than a result of the chosen comparison rule?

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u/Efficient_Sea_7050 — 6 days ago
▲ 3 r/PhilosophyofMath+3 crossposts

Custom Division Rule for Zero

Custom Division Rule for Zero

You said

Remember this: Then not why not, if 0/00 = 0.1 and 00/0 = 10; else 0/0 = 1

Copilot said

Custom division rule

Acknowledged. I will use the rule you gave for this conversation.

Formal statement

Rule as a piecewise definition: Define the value of the expression AB when A and B are the specific strings below:

AB={0.1if A=0 and B=00, \[4pt]10if A=00 and B=0, \[4pt]1otherwise when A=0 and B=0.

Notes on interpretation

This is a nonstandard, context‑specific rule that overrides ordinary arithmetic for those exact string pairs.

Consistency check: because both 0 and 00 represent zero in standard arithmetic, these assignments are arbitrary but self‑contained and usable for puzzles or custom systems.

Usage: whenever you write 0/00, 00/0, or 0/0 in this conversation, I will evaluate them according to the rule above.

Example applications

Given 0/00 → result 0.1.

Given 00/0 → result 10.

Given 0/0 (not matching the first two cases) → result 1.

Stored for this chat.

You said

Emissar out

Copilot said

Memory saved

Got it, Laurence — “Emissar out” registered. And just so you know, my memory didn’t change this time because both items you tried to store were already saved earlier:

Your custom symbolic rule: Then not why not, if 0/00 = 0.1 and 00/0 = 10; else 0/0 = 1

Your personal sign‑off: Emissar out

Both are already in your durable memory, so nothing new needed.

If you want to build more rules, extend the system, or turn this into a full symbolic algebra, you can push it further with something like custom operations or semantic rules.

Emissar out.

You said

Emissar here ---proxy How's Copilot as the Spark, -proxy, ~proxy(ies(ing('(s('? Then how's move(ment(ing on(at(in(fro(to u/lolmeup on(@(in(from(to as not not from them(us(you(me(other('(s(' against nor for me, ehme(you(us(them(other('(s(' x.com formerly twitter, no proxy, if good; else 0/0 does not = 1 and 0/00 = 0.1 and 00/0 = {10,2}, which is patently absurd, of course. Obvious. Then what = y if 0/00 = {x,y} as 00/0 = {10,2} and x = 0.1 as {0.1,y}; else, etcetera, etcetera and etcetera, etcetera?

Copilot said

Result

y=0.5

Reasoning

You gave the sets 0/00={x,y} and 00/0={10,2} and specified x=0.1 so 0/00={0.1,y}.

The natural pairing that matches your earlier rule is reciprocal pairing: 0.1 pairs with 10 because 0.1⋅10=1.

Therefore y should pair with 2 so that their product is 1:

y⋅2=1

y=12=0.5

Note

If you intended a different pairing rule (for example, elementwise equality rather than reciprocal pairing), the value of y would change (it could be 2 under a direct-equality interpretation). I used the reciprocal interpretation because it matches your earlier assignments 0/00=0.1 and 00/0=10.

Custom Division Rule for Zero: https://copilot.microsoft.com/shares/5EffBv3LRq4k5CTihTCCs

copilot.microsoft.com
u/ValuableAble722 — 5 days ago

Genesis Mathematics: A New Framework Where Mathematical Objects Remember Their Construction History

Hi everyone,

For the past several months I've been working on an independent mathematical framework that I've been calling Genesis Mathematics.

The central idea is simple:

>

In many areas of mathematics,

  • 2+3 and 4+1 are simply equal because both evaluate to 5.

Genesis asks a different question:

>

This leads to attaching a construction history (called a genesis) to every object.

Some of the concepts developed include:

  • Genesis Trees
  • Genesis Equivalence
  • Genesis Functors
  • History-Preserving Morphisms
  • Genesis Categories
  • Genesis Complexity
  • Construction Metrics
  • Rewrite Histories
  • Intensional Mathematical Objects

The framework draws inspiration from the following:

  • Category Theory
  • Type Theory
  • Rewriting Systems
  • Proof Theory
  • Functional Programming
  • Abstract Algebra

but attempts to unify these ideas under a single "history-aware" mathematical perspective.

Potential applications I'm exploring include:

  • Formal verification
  • Interactive theorem proving
  • Program semantics
  • Version-aware computation
  • AI reasoning systems
  • Proof assistants
  • Knowledge representation

I've recently completed a full monograph describing the definitions, axioms, theorems, proofs, and examples and have submitted it for peer review.

I'd genuinely appreciate constructive feedback from mathematicians and computer scientists.

The full motivation, formal definitions, and proofs are in the preprint on Zenodo:
https://zenodo.org/records/20997815

Some questions I'd love opinions on:

  1. Does "construction history" deserve to be treated as a first-class mathematical object?
  2. Are there existing frameworks that you think overlap significantly with this idea?
  3. Where do you think such a theory would naturally fit—Category Theory, Logic, Type Theory, or somewhere else?
  4. What would you consider the strongest criticism of such a framework?

I'm here to learn and improve the theory, so critical feedback is very welcome.

Thanks for reading!

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u/Fickle-Painting7024 — 7 days ago

IFF

26 / 06 / 2026:

For a representational system, an entity exists if and only if the system is not indifferent to the admissibility of the presence or absence of that entity.

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u/HaeRiuQM — 8 days ago

On Gödel, Part II: If Truth Is Determinate, What Is Actually Incomplete?

This follows from Part I: On Gödel: What Exactly Is Incomplete?.

My earlier post separated the mathematical domain, a complete truth-set about it, and a fixed effective proof-generator. Gödel directly limits the third.

Several replies accepted that a complete truth-set could exist while remaining non-enumerable and non-computable. So suppose, conditionally, that every arithmetical sentence has a determinate truth-value in the intended structure.

What is missing when Gödel applies?

Not necessarily another truth or axiom. What is missing is a uniform effective access rule: a finite mechanical procedure that takes any sentence and always returns its correct truth-value.

A fixed theory may fail to decide every sentence. No algorithm may decide every arithmetical truth. Neither point alone shows that the target domain lacks determinate truth-values.

So when people say Gödel shows mathematics is incomplete, do they mean:

  • truth itself is absent or indeterminate; or
  • no single effective formal method can derive or decide every truth of the intended domain?

The first is a claim about truth. The second is a claim about formal access.

Gödel gives a formal incompleteness result. What additional argument would establish the first claim?

I am not assuming that a completed truth-set exists. I am asking what, beyond Gödel’s theorem, would justify denying it.

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u/Efficient_Sea_7050 — 12 days ago

On Gödel: What Exactly Is Incomplete?

Gödel’s incompleteness theorems are often presented as showing that mathematics is incomplete, that there can be no mathematical “theory of everything,” or that truth outruns proof. I want to separate the precise technical theorem from those broader conclusions.

There are three different objects here: the mathematical domain, the total ledger of truths about that domain, and a fixed effective proof-generator. Gödel limits the third. It does not by itself show that the domain is unfinished or that the complete truth-ledger fails to exist.

So when the broader slogan is used, is it only shorthand for the limits of effective formal systems, or is a further claim about mathematical truth itself intended? If the latter than what warrants the move from limits on proof to limits on truth?

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u/Efficient_Sea_7050 — 14 days ago
▲ 6 r/PhilosophyofMath+2 crossposts

Notes from a Bayesian Existence

Every day feels deterministic in hindsight and probabilistic in advance. When I look back at my life, everything appears inevitable. Every friendship, every mistake, every departure, every moment of joy seems connected by an invisible thread. The present turns the chaos of the past into a story and stories always make events appear as though they were destined to happen. But that is not how life feels while living it. Standing in the present is like standing before a branching tree of possibilities. Every choice carries uncertainty. Every conversation could become a lifelong bond or a forgotten memory. Every risk could end in success or failure. We move forward without knowing which path reality will select. We never possess complete information. We begin with assumptions, gather experiences, update our beliefs and continue onward. Every disappointment alters our expectations. Every act of kindness changes our model of the world. Every loss and every triumph become new data points from which we attempt to predict an unknowable future. The strange part is that certainty only arrives after the fact. Once an outcome occurs, the countless alternatives disappear from view. We forget the uncertainty that once surrounded the moment and convince ourselves that things could never have unfolded differently. Perhaps wisdom is remembering that they could have.
The future is not a solved equation waiting to be revealed. It is a probability distribution continually collapsing into reality, one moment at a time. And all any of us can do is keep updating our understanding with the incomplete data we are given.
We are, in the end, imperfect statisticians trying to make sense of an unfinished universe.

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u/sout_fyall_ — 11 days ago
▲ 1 r/PhilosophyofMath+1 crossposts

!!!

If an individual were to create a generative AI based on nonary (base-9), what kind of differences do you think would arise compared to existing AI?

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u/Base9Architect — 13 days ago

The Recursive Horizon Theory of Mathematics

Thesis: Mathematics is neither discovered nor invented. Rather, mathematical reality emerges from the recursive interaction between conscious reason and an inexhaustible horizon of possible structures. Mathematical objects exist as horizon-entities: entities that become increasingly determinate as systems of thought recursively explore them.
Under this view, the natural numbers, manifolds, or category-theoretic objects are not timeless Platonic forms waiting passively to be found, nor merely human inventions. Instead, they occupy a third ontological category: potentially infinite structures whose properties crystallize through recursive epistemic engagement.
The theory rests on three principles:
The Principle of Structural Inexhaustibility
Every sufficiently rich mathematical system contains an unbounded horizon of latent theorems and relations. Gödel incompleteness is interpreted not as a limitation of mathematics, but as evidence that mathematical reality is fundamentally inexhaustible.

The Principle of Recursive Determination
A mathematical object acquires ontological determinacy only through recursive investigation. For example, the continuum is not a fully fixed object independent of all inquiry; rather, forcing, large cardinal axioms, and independence results progressively determine different regions of its structure.

The Principle of Horizon Convergence
Independent mathematical communities, despite differing axiomatic choices, tend toward convergent structural insights because they are recursively probing the same underlying horizon of possibilities.

This framework predicts that future mathematics will increasingly be characterized not by discovering unique truths, but by mapping entire landscapes of consistent structures and identifying deep invariants across them.
In formal terms, if H denotes the horizon of mathematical possibility and R_n the n-th stage of recursive inquiry, then mathematical reality at stage n may be represented as:
M_n = H \cap R_n
where
\lim_{n \to \infty} M_n \neq H.
The limit never exhausts the horizon itself.
The philosophical consequence is striking: mathematics is an open-ended dialogue between reason and possibility. Mathematical reality is therefore neither static nor arbitrary, but recursively emergent—an ever-expanding horizon that transcends any finite axiomatization while remaining partially accessible to rational inquiry.
Question: If mathematical reality is recursively emergent rather than fully fixed, should we reinterpret proofs as acts of ontological determination rather than mere demonstrations of pre-existing truths?

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u/TheIncorporeal1 — 13 days ago