Mathlib Map

Theorems · Theorem · sequences and series

summable_iff_nat_tsum_vanishing

∀ {G : Type u_2} [inst : AddCommGroup G] [inst_1 : UniformSpace G] [IsUniformAddGroup G] [CompleteSpace G] {f : ℕ → G},
  Summable f ↔ ∀ e ∈ nhds 0, ∃ N, ∀ t ⊆ {n | N ≤ n}, ∑' (n : ↑t), f ↑n ∈ e
Defined in
Mathlib.Topology.Algebra.InfiniteSum.NatInt
Cited by
1 results in Mathlib
Foundations
Depth 84 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AddCommGroupUniformSpaceIsUniformAddGroupCompleteSpace

Around this declaration

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

Cites14

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

Cited by1

Results whose statement or proof uses this declaration.