1. Give a regular grammar for 1+ (0+1)*(0+1+01) 2.Given the following DFA, convert it to a right-linear grammar. Do not remove useless symbol 3. Prove by pumping lemma that L={0^n 1^n 2^m / n>=1 m>=1} not regular 4. Prove by pumping regular that L2 is noit regular with L2={a^l b^m c^n / l=m or m =/= n; l >= 1, m >= 1, n >= 1}

? 13 ? 13