Metamath Proof Explorer


Theorem llyssnlly

Description: A locally A space is n-locally A . (Contributed by Mario Carneiro, 2-Mar-2015)

Ref Expression
Assertion llyssnlly Locally 𝐴 ⊆ 𝑛-Locally 𝐴

Proof

Step Hyp Ref Expression
1 llynlly ( 𝑗 ∈ Locally 𝐴𝑗 ∈ 𝑛-Locally 𝐴 )
2 1 ssriv Locally 𝐴 ⊆ 𝑛-Locally 𝐴