Mathematics, 27.12.2019 00:31 sistersaray
Suppose that g = (v, e) is a directed graph. a vertex w ∈ v is reachable from a vertex v ∈ v if there is a directed path from v to w. the vertices v and w are mutually reachable if there are both a directed path from v to w and a directed path from w to v in g.
show that { (u, v) | u and v are mutually reachable in directed graph g = (v, e) } is an equivalence relation (i. e., reflexive, symmetric, and transitive).
Answers: 1
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Suppose that g = (v, e) is a directed graph. a vertex w ∈ v is reachable from a vertex v ∈ v if ther...
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