<p dir="ltr"><img src="https://d2vlcm61l7u1fs.cloudfront.net/media%2F785%2F785a7a5d-bff8-4619-916c-b505e12081d2%2Fimage" alt="Create a Stack Machine (in any language you wish, I would use Python) to validate the language XXR, that is, the language of palindromes. The input to
<p><em><img alt="Let r and s be regular expressions. Prove that: (r* US*)-(rus) where the equality .= , above is understood asU㈹s*)) = L((rus)) Show that there are such s and