Displaying similar documents to “Analyses of languages accepted by varietor machines in category”

Algebra grammars

Radim Bělohlávek (1995)

Acta Mathematica et Informatica Universitatis Ostraviensis

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Formal Languages - Concatenation and Closure

Michał Trybulec (2007)

Formalized Mathematics

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Formal languages are introduced as subsets of the set of all 0-based finite sequences over a given set (the alphabet). Concatenation, the n-th power and closure are defined and their properties are shown. Finally, it is shown that the closure of the alphabet (understood here as the language of words of length 1) equals to the set of all words over that alphabet, and that the alphabet is the minimal set with this property. Notation and terminology were taken from [5] and [13]. MML identifier:...