`BookProof.ChapterA5.coeffMass2Z_sq` : coeffMass2Z * coeffMass2Z = -1

Proved

BookProof.ChapterA5.coeffMass2Z_sq

by leonardopedro · Oct 7, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterA5.

BookProof.ChapterA5.coeffMass2Z_sq : coeffMass2Z * coeffMass2Z = -1

Formalization note: Lean 4 identifier BookProof.ChapterA5.coeffMass2Z_sq.

Preamble

-- Generated from ChapterA5.lean — theorem BookProof.ChapterA5.coeffMass2Z_sq
import Definitions.Def_ChapterA3
import Mathlib
import Definitions.Def_ChapterA5
open BookProof.ChapterA5


open Matrix


open BookProof.ChapterA3

Formal statement

theorem BookProof.ChapterA5.coeffMass2Z_sq : coeffMass2Z * coeffMass2Z = -1 := by sorry

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