`BookProof.ChapterFreeFieldBornSignGauge.signFlip_mem_sphere` {s : Fin n → ℝ} (hs : ∀ k, s k = 1 ∨ s k = -1) {x : EuclideanSpace ℝ (Fin n)} (hx : x ∈ Metric.sphere (0 : EuclideanSp

Initializing...

`BookProof.ChapterFreeFieldBornSignGauge.signFlip_mem_sphere` {s : Fin n → ℝ} (hs : ∀ k, s k = 1 ∨ s k = -1) {x : EuclideanSpace ℝ (Fin n)} (hx : x ∈ Metric.sphere (0 : EuclideanSp · Prove2Me