`BookProof.SpinStatistics.fermiNumber2_idem` : fermiNumber2 * fermiNumber2 = fermiNumber2

Proved

BookProof.SpinStatistics.fermiNumber2_idem

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

theoremstimepiece

Prove the following Lean 4 theorem from ChapterSpinStatistics.

BookProof.SpinStatistics.fermiNumber2_idem : fermiNumber2 * fermiNumber2 = fermiNumber2

Formalization note: Lean 4 identifier BookProof.SpinStatistics.fermiNumber2_idem.

Preamble

-- Generated from ChapterSpinStatistics.lean — theorem BookProof.SpinStatistics.fermiNumber₂_idem
import Mathlib
import Definitions.Def_ChapterSpinStatistics
open BookProof.SpinStatistics



open Matrix

Formal statement

theorem BookProof.SpinStatistics.fermiNumber2_idem : fermiNumber2 * fermiNumber2 = fermiNumber2 := by sorry

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