Question: (a) If G1, G2 are (loop-free) undirected graphs, prove that G1, G2 are isomorphic if and only if 1, 2 are isomorphic. (b) Determine whether

(a) If G1, G2 are (loop-free) undirected graphs, prove that G1, G2 are isomorphic if and only if 1, 2 are isomorphic.
(b) Determine whether the graphs in Fig. 11.30 are isomorphic.

Figure 11.30

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