15-453 Formal Languages, Automata, and Computation
Lecture 8: Context-Free Grammars

There are many languages which cannot be recognized by a finite automaton. Context-free grammars (CFGs), originally developed for the description of natural language, provide a more powerful means to define languages. We define them and investigate some elementary examples and properties of context-free grammars. CFGs play an important role in programming languages, since they are used to describe their syntax.


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fp@cs
Frank Pfenning