Question: For the alphabet = {a, b, c}, let language A be the set of all strings that contain at least one of each alphabet symbols.

For the alphabet = {a, b, c}, let language A be the set of all strings that contain at least one of each alphabet symbols.

(a) Prove that this language is regular.

(b) Prove that there is a subset B of this language (i.e., B A) that is not regular

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