Mathlib Map

Theorems · Theorem · group theory

Finset.prod_comm

∀ {α : Type u_3} {β : Type u_4} {γ : Type u_5} [inst : CommMonoid β] {s : Finset γ} {t : Finset α} {f : γ → α → β},
  ∏ x ∈ s, ∏ y ∈ t, f x y = ∏ y ∈ t, ∏ x ∈ s, f x y
Defined in
Mathlib.Algebra.BigOperators.Group.Finset.Sigma
Cited by
8 results in Mathlib
Foundations
Depth 77 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommMonoid

Around this declaration

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

Cites4

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

Cited by8

Results whose statement or proof uses this declaration.