`BookProof.SpinStatistics.fermiNumber_commute` : fermiNumber1 * fermiNumber2 = fermiNumber2 * fermiNumber1

Proved

BookProof.SpinStatistics.fermiNumber_commute

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

theoremstimepiece

Prove the following Lean 4 theorem from ChapterSpinStatistics.

BookProof.SpinStatistics.fermiNumber_commute : fermiNumber1 * fermiNumber2 = fermiNumber2 * fermiNumber1

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

Preamble

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



open Matrix

Formal statement

theorem BookProof.SpinStatistics.fermiNumber_commute : fermiNumber1 * fermiNumber2 = fermiNumber2 * fermiNumber1 := by sorry

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