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Context-Free Grammars

A Context-Free Grammar (CFG) is a set of rules used to define the structure of a language, particularly in computer science and linguistics. It consists of variables, or non-terminal symbols, that define how sentences can be formed using terminals (the actual symbols or tokens). Each rule describes how a non-terminal can be replaced by a combination of other symbols. CFGs are useful for parsing and understanding languages, including programming languages and natural languages, allowing computers to process and generate structured text according to specific syntactic patterns.

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    A context-free grammar (CFG) is a set of rules used to define the structure of a language, describing how symbols can be combined to create valid sentences. It consists of a collection of production rules, where each rule specifies how a symbol can be replaced with a combination of other symbols. CFGs are particularly useful in computer science, especially in programming languages and compilers, as they help in parsing and analyzing the syntax of code. Essentially, CFGs offer a framework for understanding the patterns and structures that make up languages, both natural and artificial.