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EXAMPLE 7 . 1 0 The language L = { a n b n : n 0 } is a deterministic context - free language.

EXAMPLE 7.10
The language
L={anbn:n0}
is a deterministic context-free language. The pda ,{:b},{0,1},,q0,0,{q0} with
(q0,a,0)={(q1,10)},
(q1,a,1)={(q1,11)},
(q1,b,1)={(q2,)},
(q2,b,1)={(q2,)},
(q2,,0)={(q0,)}
accepts the given language. It satisfies the conditions of Definition 7.3 and is therefore deterministic.
My question. Why the given pda is dpda for the language? The language has to accept empty string, but the (d)pda can not accept it.
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