GATE | GATE IT 2006 | Question 30

Which of the following statements about regular languages is NOT true?
(A) Every language has a regular superset
(B) Every language has a regular subset
(C) Every subset of a regular language is regular
(D) Every subset of a finite language is regular


Answer: (C)

Explanation: Regular Languages are not closed under subset.
Reference: https://courses.engr.illinois.edu/cs373/sp2009/handouts/closure/regular-closure.html


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