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Theorems · Theorem · order theory

Finset.union_comm

∀ {α : Type u_1} [inst : DecidableEq α] (s₁ s₂ : Finset α), s₁ ∪ s₂ = s₂ ∪ s₁
Defined in
Mathlib.Data.Finset.Lattice.Basic
Cited by
25 results in Mathlib
Foundations
Depth 57 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.

Cites2

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
  • sup_commproof · cited by 165

Cited by25

Results whose statement or proof uses this declaration.