3. Mastering Pumping Lemma & Converting Finite Automata to Regular Expressions 📘

MIT 18.404J Theory of Computation, Fall 2020
Instructor: Michael Sipser
View the complete course: https://ocw.mit.edu/18-404JF20
YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP60_JNv2MmK3wkOt9syvfQWY

Quickly reviewed last lecture. Showed conversion of DFAs to regular expressions. Gave a method for proving languages not regular by using the pumping lemma and closure properties. Introduced context free grammars (CFGs).

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