• Shrawan Kr. Pandey
• Manish Kr. Gupta
• Abhinandan Tripathi
• Ranjeet Singh
• Chayanika Srivastava

Closure properties is a very important properties for formal languages used in automata theory. A certain type of language under some operation yield same type of language, then it is said to be language is closed under that operation. Example is that regular language under union, intersection, concatenation and some others is closed. Myhill-Nerode Theorem is a very important theorem for determining whether a given language is regular or not, because it gives necessary and sufficient condition for a given language to be regular language, on the basis of finite number of equivalence classes.

DFA, Closure properties, Formal languages, Union, Intersection, Concatenation, Myhill-Nerode theorem, Regular language, Equivalence classes.

"CLOSURE PROPERTIES OF REGULAR LANGUAGES USING MYHILL-NERODE THEOREM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.236-241, March-2019, Available :http://www.jetir.org/papers/JETIR1903N29.pdf

"CLOSURE PROPERTIES OF REGULAR LANGUAGES USING MYHILL-NERODE THEOREM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp236-241, March-2019, Available at : http://www.jetir.org/papers/JETIR1903N29.pdf