What: Intraterm Exam 2 When: Friday, April 19, 2013 Topics: - Context-free grammars (CFG's) - Pushdown automata (PDA's) - Equivalence of CFG's and PDA's - Pumping Lemma for Context-free languages - Closure properties of Context-free languages Exam Format: Closed book, closed notes. Can bring in a notebook-sized paper with your notes written on it. Both sides of the paper may be used. No computer-generated printout allowed.