Formal grammar
In formal language theory, a grammar (when the context is not given, often called a formal grammar for clarity) describes how to form strings from a language's alphabet that are valid according to the language's syntax. A grammar does not describe the meaning of the strings or what can be done with them in whatever context—only their form. A formal grammar is defined as a set of production rules for such strings in a formal language.
Formal grammar - Wikipedia Jump to content From Wikipedia, the free encyclopedia Structure of a formal language Example of a simple formal grammar (left) with parsed sentence "the dog ate the bone" (right). Formal grammars consist of a set of non-terminal symbols , terminal symbols , production rules , and a designated start symbol . Part of a series on Formal languages Key concepts Formal system Alphabet Syntax Formal semantics Semantics (programming languages) Formal grammar Formation rule Well-formed formula Automata theory Regular expression Production Ground expression Atomic formula Appl
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