Theorems · Theorem · geometry

Affine.Simplex.face_restrict

∀ {k : Type u_1} {V : Type u_2} {P : Type u_5} [inst : Ring k] [inst_1 : AddCommGroup V] [inst_2 : Module k V]
  [inst_3 : AddTorsor V P] {n : ℕ} (s : Affine.Simplex k P n) {S : AffineSubspace k P}
  (hS : affineSpan k (Set.range s.points) ≤ S) {fs : Finset (Fin (n + 1))} {m : ℕ} (h : fs.card = m + 1),
  (s.restrict S hS).face h = (s.face h).restrict S ⋯

Defined in

Mathlib.LinearAlgebra.AffineSpace.Simplex.Basic

Cited by

1 results in Mathlib

Foundations

Depth 87 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

RingAddCommGroupModuleAddTorsor