If A and B are languages, define A B = {xy| x A and y

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If A and B are languages, define A ♢ B = {xy| x ∈ A and y ∈ B and |x| = |y|}.

Show that if A and B are regular languages, then A ♢ B is a CFL.

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Introduction to the theory of computation

ISBN: 978-0470530658

3rd edition

Authors: Michael Sipser

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Question Posted: Sep 02, 2020 04:30 AM

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If A and B are languages, define A B = {xy| x A and y

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The set A B as defined in your question is the set of all strings of the form xy where x is a string ...View the full answer

Introduction to the theory of computation

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