Theorems · Theorem · linear algebra

Finsupp.supportedEquivFinsupp_symm_apply_coe

∀ {α : Type u_1} {M : Type u_2} {R : Type u_5} [inst : Semiring R] [inst_1 : AddCommMonoid M] [inst_2 : Module R M]
  (s : Set α) [inst_3 : DecidablePred fun x => x ∈ s] (f : ↑s →₀ M),
  ↑((Finsupp.supportedEquivFinsupp s).symm f) = f.extendDomain

Defined in

Mathlib.LinearAlgebra.Finsupp.Supported

Cited by

1 results in Mathlib

Foundations

Depth 77 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

SemiringAddCommMonoidModuleDecidablePred