`BookProof.ChapterFreeFieldBornFiberBounds.bornFiber_card_bounds` {p : ↥(stdSimplex ℝ (Fin n))} : 2 ≤ Nat.card ↥(bornMapSphere n ⁻¹' {p}) ∧ Nat.card ↥(bornMapSphere n ⁻¹' {p}) ≤ 2

Initializing...

`BookProof.ChapterFreeFieldBornFiberBounds.bornFiber_card_bounds` {p : ↥(stdSimplex ℝ (Fin n))} : 2 ≤ Nat.card ↥(bornMapSphere n ⁻¹' {p}) ∧ Nat.card ↥(bornMapSphere n ⁻¹' {p}) ≤ 2 · Prove2Me