`BookProof.ChapterA.conjugation_avg_fixed` (θ : AntiUnitary V) (hθ : ∀ x, θ (θ x) = x) (x : V) : θ ((2⁻¹ : ℂ) • (x + θ x)) = (2⁻¹ : ℂ) • (x + θ x)

Initializing...

`BookProof.ChapterA.conjugation_avg_fixed` (θ : AntiUnitary V) (hθ : ∀ x, θ (θ x) = x) (x : V) : θ ((2⁻¹ : ℂ) • (x + θ x)) = (2⁻¹ : ℂ) • (x + θ x) · Prove2Me