Question: Need help.... Let G be a nite graph with at least one edge. a. Show that far any i: 2 1, if W is a

Need help....

Let G be a nite graph with at least one edge. a. Show that far any i: 2 1, if W is a walk in G at length It, then there exists a walk W" in G of length I: + 1. This shews that G cannot have a longest walk. b. Show that there is some upper bound b an the length of a path in G. This means that if W is a walk of length k 2:: b, then a vertex must be repeated in W. This shows that G must have a lpngest path

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