Let Land M be two languages. The XOR operator ⊕ between two languages is defined as follows: L⊕M={w | w is either in L or M but not in both}Is the XOR operation closed for the class of: a) regular languages? b) context free languages? Answer each part with a yes/no, followed by a brief justification.
Let Land M be two languages. The XOR operator ⊕ between two languages is defined as follows: L⊕M={w | w is either in L or M but not in both}Is the XOR operation closed for the class of: a) regular languages? b) context free languages? Answer each part with a yes/no, followed by a brief justification.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Let Land M be two languages. The XOR operator ⊕ between two languages is defined as follows: L⊕M={w | w is either in L or M but not in both}Is the XOR operation closed for the class of:
a) regular languages?
b) context free languages?
Answer each part with a yes/no, followed by a brief justification.
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