Theorems · Theorem · probability

Finset.expect_image

∀ {ι : Type u_1} {κ : Type u_2} {M : Type u_4} [inst : AddCommMonoid M] [inst_1 : Module ℚ≥0 M] {f : ι → M}
  {t : Finset κ} [inst_2 : DecidableEq ι] {m : κ → ι},
  Set.InjOn m ↑t → ((Finset.image m t).expect fun i => f i) = t.expect fun i => f (m i)

Defined in

Mathlib.Algebra.BigOperators.Expect

Cited by

2 results in Mathlib

Foundations

Depth 91 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

AddCommMonoidModuleDecidableEq