Posted by **Steve** on Thursday, May 9, 2013 at 8:24am.

Prove by induction on all positive integer k that if m is any ordinary nfa with k states, and m has fewer than k - 1 transitions, then there exists a state of m that is not reachable.

Let N be the λ-NFA: "L" for "λ"

b

>(1) -----> ((2))

| ^. |

b| | L. | a

V |. V

(3) <------ (4)

L

Prove by induction for all natural number I that the string b(ab)^i is in the language L(N)

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