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 )