Alphabet (formal languages)

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Better than nothing, will do for now Alec (talk) 00:32, 13 January 2018 (UTC)


The "alphabet" of a string, grammar, DFA and so forth, typically denoted [ilmath]\Sigma[/ilmath] (capital "sigma") is a finite set of "symbols" used in the sentences or strings under discussion

See also


  1. Significant work must be done to alter later definitions to deal with the possibility of an empty alphabet, so it is easier not to