Theorems · Theorem · combinatorics

Finset.image_sdiff

∀ {α : Type u_1} {β : Type u_2} [inst : DecidableEq β] [inst_1 : DecidableEq α] {f : α → β} (s t : Finset α),
  Function.Injective f → Finset.image f (s \ t) = Finset.image f s \ Finset.image f t

Defined in

Mathlib.Data.Finset.Image

Cited by

3 results in Mathlib

Foundations

Depth 78 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

DecidableEqDecidableEq