Exercise 1: Let E = {a, b}. Define the language L défined by of th %3D give 5 strings of L in lexicographic order. (Short first and alphabetical order) (1) S → a Sa T T a XaX XbXb | a a. L= b. Strings: ..... ... ..... ...... .... ..... .. .... .... (2) S→ aSa S- bSb S→a | b a. L= b. Strings: .... .... ..... ..... ..... ... ..... .... (3) SaA bB B→ bB |b A aA La a. L= b. Strings:

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