Interpreting the regular expressions as languages

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Reference no: EM1354432

Q1) Show that the following identities hold for regular expressions over any alphabet:

1. epsilon + R*R = R*
2. (R*S*) = (R + S)*

These should be done by interpreting the regular expressions as languages (i.e. sets of words) and arguing that the sets are equal. The proofs do not have to be formal proofs by induction; a compelling argument will suffice.

Reference no: EM1354432

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