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