## Generic Function In-Undirected-Cycle-P (1 method)

(

**in-undirected-cycle-p** < graph > < start-vertex > &optional < marked > < previous > )

Return true if-and-only-if an undirected cycle in

graph is reachable from start-vertex.

### Method Summary

in-undirected-cycle-p < cl-graph:basic-graph > < cl-graph:basic-vertex > |