0 votes 0 votes Abhim1811 asked Mar 3, 2022 Abhim1811 1.3k views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Shoto commented Mar 3, 2022 reply Follow Share Given L is regular. Let L$_{2}$ = {a} which is also regular, and we know that regular languages are closed under union operation. So, L U {a} is also regular. 3 votes 3 votes 33 commented Mar 4, 2022 i reshown by 33 Mar 4, 2022 reply Follow Share @Abhim1811 a = null string ... Let L1={a} .. (L−L1 )= (L ∩ L¯1 ) ... regular languages are closed under intersection and complementation... ⟹L−{a} is regular ... 1. https://gateoverflow.in/306903/Peter-linz-edition-4-exercise-2-1-question-17-page-no-48 0 votes 0 votes Please log in or register to add a comment.
