Prof. Busch - LSU1 Simplifications of Context-Free Grammars.
Prof. Busch - LSU1 Context-Free Languages. Prof. Busch - LSU2 Regular Languages Context-Free Languages.
Prof. Busch - LSU1 Undecidable Problems (unsolvable problems)
Prof. Busch - LSU1 Non-regular languages (Pumping Lemma)
Prof. Busch - LSU1 More Applications of the Pumping Lemma.