Question: Let E be an alphabet. For any strings u, v E E, prove that (a) uv| = |u| + |v|. (b) |uv| = |vu|l.

Let E be an alphabet. For any strings u, v E E,

Let E be an alphabet. For any strings u, v E E, prove that (a) uv| = |u| + |v|. (b) |uv| = |vu|l.

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