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A spanning forest of an undirected graph Y is a forest Z whose nodes are the...

A spanning forest of an undirected graph Y is a forest Z whose nodes are the same as Y’s nodes, each of whose edges is also an edge of Y, and with the same path relation as Y. Prove that any undirected graph has a spanning forest.

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Forest! - Forest is a collection of disjoint trees. In other words Forest is a collection of an acyclic graph which is not Co

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