finite automata - Checking if a Language is Regular -


when asked prove language regular, start?

what methods have prove language regular?

language {a^n | n<>2 , n<>≡ 3(mod 7)}

as hint: if make cycle of 7 states linked in ring , number them 0, 1, 2, 3, ..., 6, can string w ends in state number k? based on that, make of these states accepting language want?

hope helps!


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