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

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Outline Review Nondeterminism Eq. of NFAs and DFAs Closure Reg.Ex. Eq. between Reg.Ex. and FAaProof by Structural InductionIn proving Lemma 5, we show how to construct an NFA of aregular expression given NFAs of its subexpressions.The proof is again an inductive proof.Sometimes, this kind of inductive proofs is called structuralinduction.
Outline Review Nondeterminism Eq. of NFAs and DFAs Closure Reg.Ex. Eq. between Reg.Ex. and FAaProof by Structural InductionIn proving Lemma 5, we show how to construct an NFA of aregular expression given NFAs of its subexpressions.The proof is again an inductive proof.Sometimes, this kind of inductive proofs is called structuralinduction.Inductive Hypothesis (when considering a regular expressionR): Assume that for all smaller regular expressions R ′ , thelanguage described by R ′ can be recognized by some NFA N ′ .
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NFA, DFA, and regular expressions - 204213 Theory of Computation

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