Formal description of NFA operation
What do you mean by Formal description of NFA operation ?
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NFA M = (Q, Σ, δ, q0, F)
accepts a string w = w1 w2 w3 … wn ∈ Σ*
if w can be written (by inserting ε’s) as:
y = y1 y2 y3 … ym ∈ (Σ ∪ {ε})*and ∃ sequence r0 ,r1,…,rm of states for which
– r0 = q0
– ri+1 ∈ δ(ri, yi+1) for i = 0, 1, 2, .... m-1
- rm ∈ F
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