Metamath Proof Explorer


Theorem climrel

Description: The limit relation is a relation. (Contributed by NM, 28-Aug-2005) (Revised by Mario Carneiro, 31-Jan-2014)

Ref Expression
Assertion climrel ⊢ Rel ⁡ ⇝

Proof

Step Hyp Ref Expression
1 df-clim ⊢ ⇝ = f y | y ∈ ℂ ∧ ∀ x ∈ ℝ + ∃ j ∈ ℤ ∀ k ∈ ℤ ≥ j f ⁡ k ∈ ℂ ∧ f ⁡ k − y < x
2 1 relopabiv ⊢ Rel ⁡ ⇝