Documents Formal Languages Non-Regular Languages

Formal Languages Non-Regular Languages Regular languages Non-regular languages How can we prove that a language is not regular? Problem: this is not easy to prove Solution:…

Documents 1 Non-regular languages. 2 Regular languages Non-regular languages.

Non-regular languages Regular languages Non-regular languages How can we prove that a language is not regular? Problem: this is not easy to prove Solution: the Pumping Lemma…

Documents More Properties of Regular Languages

More Properties of Regular Languages We have proven Regular languages are closed under: Union Concatenation Star operation Reverse Namely, for regular languages and : Union…

Documents More Applications of the Pumping Lemma

More Applications of the Pumping Lemma The Pumping Lemma: Given a infinite regular language there exists an integer for any string with length we can write with and such…