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See also:
  • Context-free Grammar - A Wikipedia article that defines context free grammars and uses them to generate context free languages.
  • Context-Free Grammars and Parsing - An article defining the grammar and how Binary Normal Form (BNF) is used to parse words in a context free language. An example shows how operator precedence is preserved in a context free grammar.
  • Formal Grammars and Languages - A survey article on formal systems that define families of formal languages arising in many computer science applications with primary focus on context-free languages.
  • Push-Down Automata and Context-Free Grammars - Lecture notes defining context free grammars and closure and decidability properties of context free languages. There is a short section showing that natural languages are not context free.
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Last update: September 25, 2014 at 21:54:08 UTC - edit