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What is the DFA for

L = { w1abw2 : w1 ∊ {a,b}* , w2 ∊ {a,b}* }
asked in Theory of Computation by (251 points) | 24 views
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The regex for this would be $(a+b)^*ab(a+b)^*$. You can the construct a NFA for this, and then convert the NFA to a DFA using the subset construction method.
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and it will have #3 states DFA.

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