A tree is a circuit-free connected graph. A leaf is a vertex of
degree 1 in...
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A tree is a circuit-free connected graph. A leaf is a vertex ofdegree 1 in a tree. Show that every tree T = (V, E) has thefollowing properties: (a) There is a unique path between every pairof vertices. (b) Adding any edge creates a cycle. (c) Removing anyedge disconnects the graph. (d) Every tree with at least twovertices has at least two leaves. (e) | V |=| E | +1.
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