Lean verification registry · Authored proofs · The Logos Architecture
Written formal sequents verified
Axiom-free: true · 1 checked theorem statements.
Lean establishes the listed formal statements and dependencies. The exact authored source, Ground, known premise meanings, application validation and empirical evidence remain separately typed. No unencoded section is certified by a neighboring theorem.
Original source author: Maclain Hunter. Machine formalization: Replit Agent. No original wording was rewritten.
Source registered: 2026-10-02T16:41:39.389Z (not original authorship).
Formalized: 2026-10-03T10:37:05.082Z.
Checked: 2026-10-03T10:42:48.834Z.
Independent timestamp: 2026-10-03T10:42:55.000Z.
Authored source SHA-256: d0e8bae2d21f0593b87ea501ef998c27ae970fb582504535a38dd586b5aa4cff
Lean source · Verification JSON · Exact archived source JSON · Compiler report · Current authored source page · Signed release and verification instructions
Lean (version 4.7.0, commit v4.7.0, Release) exitCode=0 'HunterAuthored.inference_1' does not depend on any axioms
{P, P <-> Q, Q <-> R, R <-> S} |= (P & Q) & (R & S)
Exact source sequent under finite two-valued propositional semantics. Source proposition meanings and Logic/Logos/God Ground are preserved separately; this checks the inference, not unencoded prose.
Validating the Pythagorean Theorem by Maclain Hunter:
Premises:
P: Let P represent side (leg) a of a right triangle squared.
Q: Let Q equal the square of side (leg) b of a right triangle.
R: Let R equal side c (the hypotenuse) of a right triangle. Let R also equal the conjunction of P and Q.
S: Assume the relationship between P, Q, and R is not valid and doesn’t represent the Pythagorean Theorem.
Logical Argument (Proof):
{P, P <-> Q, Q <-> R, R <-> S} |= (P & Q) & (R & S)
Conclusion: (P & Q) & (R & S):
The logically valid relationship and structure, shown by the formal argument, between the premises {P, Q, R} representing the sides of a right triangle, validates the Pythagorean Theorem as a logically valid argument and structure. We prove the theorem here also through contradiction (ie - premise S). This assumption in premise S leads to paradox and contradiction since the relationship of these premises specifically represent the relationship between what these premise represent, which is, here, the sides of a right triangle, of an unfixed size.
Therefore, the relationships are valid and display the same sort of objective logical relationship that the Pythagorean Theorem does, and that the sides of a given right angle do. When valid inputs are provided the theorem will produce the proper output, and like a logical proof the validity of the output (ie - c ^ 2) depends on the validity of the inputs (ie - a ^ 2 + b ^ 2). The theorem is valid, contingent upon the validity of a and b.
Truth Table Analysis:
valid
↓ ↓ ↓ ↓ ↓
PQRS⎪P P↔Q Q↔R R↔S╞(P&Q)&(R&S)
―――――――――――――――――――――――――――――――
TTTT⎪T TTT TTT TTT TTT T TTT
TTTF⎪T TTT TTT TFF TTT F TFF
TTFT⎪T TTT TFF FFT TTT F FFT
TTFF⎪T TTT TFF FTF TTT F FFF
TFTT⎪T TFF FFT TTT TFF F TTT
TFTF⎪T TFF FFT TFF TFF F TFF
TFFT⎪T TFF FTF FFT TFF F FFT
TFFF⎪T TFF FTF FTF TFF F FFF
FTTT⎪F FFT TTT TTT FFT F TTT
FTTF⎪F FFT TTT TFF FFT F TFF
FTFT⎪F FFT TFF FFT FFT F FFT
FTFF⎪F FFT TFF FTF FFT F FFF
FFTT⎪F FTF FFT TTT FFF F TTT
FFTF⎪F FTF FFT TFF FFF F TFF
FFFT⎪F FTF FTF FFT FFF F FFT
FFFF⎪F FTF FTF FTF FFF F FFF
Q.E.D.