Metamath Proof Explorer


Theorem clwwlksclwwlkn

Description: The closed walks of a fixed length as words are closed walks (in an undirected graph) as words. (Contributed by Alexander van der Vekens, 15-Mar-2018) (Revised by AV, 12-Apr-2021)

Ref Expression
Assertion clwwlksclwwlkn ⊢ N ClWWalksN G ⊆ ClWWalks ⁡ G

Proof

Step Hyp Ref Expression
1 clwwlkclwwlkn ⊢ w ∈ N ClWWalksN G → w ∈ ClWWalks ⁡ G
2 1 ssriv ⊢ N ClWWalksN G ⊆ ClWWalks ⁡ G