Theorems · Theorem · sequences and series

hasProd_single

∀ {α : Type u_1} {β : Type u_2} [inst : CommMonoid α] [inst_1 : TopologicalSpace α] {f : β → α} (b : β),
  (∀ (b' : β), b' ≠ b → f b' = 1) →
    ∀ (L : optParam (SummationFilter β) (SummationFilter.unconditional β)) [L.LeAtTop], HasProd f (f b) L

Defined in

Mathlib.Topology.Algebra.InfiniteSum.Basic

Cited by

4 results in Mathlib

Foundations

Depth 84 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CommMonoidTopologicalSpaceSummationFilter.LeAtTop