`BookProof.ChapterA3.pauliCoeff_one` (μ : Fin 4) : pauliCoeff (1 : Matrix (Fin 2) (Fin 2) ℂ) μ = if μ = 0 then 1 else 0

Proved

BookProof.ChapterA3.pauliCoeff_one

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

theoremstimepiece

Prove the following Lean 4 theorem from ChapterA4c.

BookProof.ChapterA3.pauliCoeff_one (μ : Fin 4) : pauliCoeff (1 : Matrix (Fin 2) (Fin 2) ℂ) μ = if μ = 0 then 1 else 0

Formalization note: Lean 4 identifier BookProof.ChapterA3.pauliCoeff_one.

Preamble

-- Generated from ChapterA4c.lean — theorem BookProof.ChapterA3.pauliCoeff_one
import Mathlib
import Definitions.Def_ChapterA4c
import Definitions.Def_ChapterA3
import Definitions.Def_ChapterA3h
open BookProof.ChapterA3


open Matrix
open scoped ComplexConjugate

Formal statement

theorem BookProof.ChapterA3.pauliCoeff_one (μ : Fin 4) :
    pauliCoeff (1 : Matrix (Fin 2) (Fin 2) ℂ) μ = if μ = 0 then 1 else 0 := by sorry

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