Validating the Pythagorean Theorem by Maclain Hunter

Authored by Maclain Hunter · first-party-authored · authored-foundational-record

Stored 4P source diagnostic: unresolved · finding unverified_concern · admission admitted_provisionally. This intake result is separate from the theorem checks of the exact propositional sequent.

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.

Lean 4 verification and timestamps

The machine formalization date is separate from the original authored work. See the verification record for exact checked scope and any unresolved parts.

Logic-centered continuity

This authored proof is connected to Logic, Logos, God, and the self-evident Ground of Reality, and to the distinct systems 4P Engine, MCB Core, 4P-MCB, and the source-first Canon. Formal proof, empirical evidence, and system-generated records remain separately typed.