Hector Miguel Chavez Western Michigan University.
Conjunctive Grammars and Alternating Automata Tamar Aizikowitz and Michael Kaminski Technion – Israel Institute of Technology WoLLIC 2008 Heriot-Watt University.
CS 3240: Languages and Computation Properties of Context-Free Languages.
Today Chapter 2: (Pushdown automata) Non-CF languages CFL pumping lemma Closure properties of CFL.