2. Nondeterminism, Closure Properties, Conversion of Regular Expressions to FA

MIT 18.404J Theory of Computation, Fall 2020
Instructor: Michael Sipser
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Quickly reviewed last lecture. Introduced nondeterministic finite automata (NFA). Proved that NFA and DFA are equivalent in power. Proved that the class of regular languages is closed under concatenation and star. Showed conversion of regular expressions to NFAs.

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