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NFA, DFA, and regular expressions - 204213 Theory of Computation

NFA, DFA, and regular expressions - 204213 Theory of Computation

NFA, DFA, and regular expressions - 204213 Theory of Computation

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Outline Review Nondeterminism Eq. <strong>of</strong> <strong>NFA</strong>s <strong>and</strong> <strong>DFA</strong>s Closure Reg.Ex. Eq. between Reg.Ex. <strong>and</strong> FAaRule 4R is a <strong>regular</strong> expression if R is (R 1 ∪ R 2 ) where R 1 <strong>and</strong> R 2 are<strong>regular</strong> <strong>expressions</strong>.Given an <strong>NFA</strong> N 1 <strong>and</strong> N 2 that recognize R 1 <strong>and</strong> R 2 , what is a <strong>NFA</strong>that recognizes R?

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