Metamath Proof Explorer


Theorem clwwlknbp

Description: Basic properties of a closed walk of a fixed length as word. (Contributed by AV, 30-Apr-2021) (Proof shortened by AV, 22-Mar-2022)

Ref Expression
Hypothesis clwwlknwrd.v V = Vtx G
Assertion clwwlknbp W N ClWWalksN G W Word V W = N

Proof

Step Hyp Ref Expression
1 clwwlknwrd.v V = Vtx G
2 1 clwwlknwrd W N ClWWalksN G W Word V
3 clwwlknlen W N ClWWalksN G W = N
4 2 3 jca W N ClWWalksN G W Word V W = N