graph theory
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Let G be a simple graph on n (greater or equal then) 3 vertices such that deg_G(v) (greater or equal to) n/2 for every vertex v E V(G). Prove that deleting any vertex of G results in a connected graph (i.e. G is 2-connected).
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Solution Summary
This solution helps prove that deleting any vertex of G results in a connected graph.
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Theorem:
Let G be a simple graph on n >= 3 vertices such that deg_G(v) >= n/2 for every vertex v in V(G). Then deleting any vertex of G results in a connected graph.
Proof:
Let G be a simple connected graph on n >= 3 vertices, and suppose G has a vertex v such that removing v from G results in a disconnected graph (namely, G - {v} -- ...
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