Peter Linz Chapter 1 exercise 14.e

Question

L1={$a^nb^m$:n>=0,m>n}

L2={$a^nb^{2n}$:n>=0}

find the grammar for L1L2

Answer 1

S -> AB

A ->aAC | C

C -> bC | b

B -> aBbb | $\varepsilon$

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