Concept drill
infinite union
GATE CSE & IT · Regular Languages · 1989-2020
3
PYQs
67%
keyed
0
elite explanations
3
years appeared
Study anchor
Hopcroft-Ullman / Dragon Book
Automata, languages, parsing, syntax-directed translation
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Consider the following statements. I. If L 1 $$ \cup $$ L 2 is regular, then both L 1 and L 2 must be regular. II. The class of regular languages is closed under infinite union. Wh...
easyanswer keybasic explanation
1992 PYQ
Which of the following statements is / are true / false? Regular languages are closed under infinite union.
easyanswer key
1989 PYQ
Is the class of regular sets closed under infinite union? Explain.
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