Mathlib Map

Theorems · Theorem · order theory

Finset.insert_eq

∀ {α : Type u_1} [inst : DecidableEq α] (a : α) (s : Finset α), insert a s = {a} ∪ s
Defined in
Mathlib.Data.Finset.Lattice.Lemmas
Cited by
12 results in Mathlib
Foundations
Depth 27 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
DecidableEq

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Cites1

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

  • Finsetstatement and proof · cited by 13,712

Cited by12

Results whose statement or proof uses this declaration.