Mathlib Map

Theorems · Theorem · group theory

Prod.fst_sum

∀ {ι : Type u_1} {M : Type u_3} {N : Type u_4} [inst : AddCommMonoid M] [inst_1 : AddCommMonoid N] {s : Finset ι}
  {f : ι → M × N}, (∑ c ∈ s, f c).1 = ∑ c ∈ s, (f c).1
Defined in
Mathlib.Algebra.BigOperators.Pi
Cited by
5 results in Mathlib
Foundations
Depth 16 from the axioms · uses propext, Quot.sound
Assumes
AddCommMonoidAddCommMonoid

Around this declaration

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

Cites5

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

Cited by5

Results whose statement or proof uses this declaration.