REGULAR EXPRESSION

  • an infinite set of the finite sequence defined over a language
  • analysis of the behaviour of string defined over the language
  • set of language accepted by  finite automata
  • it is a pattern which repeated itself over a definite sequence

PROPERTIES

  1. UNION :: L1UL2 is a regular language if L1 and L2 are regular
  2. CONCATENATION :: L1.L2 is a regular language if L1 and L2 are regular
  3. CLOSURE:: L* is a regular language.

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