Pushdown Automata - Hampden-Sydney College
Pushdown Automata - Hampden-Sydney College
Pushdown Automata - Hampden-Sydney College
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Example<br />
<strong>Pushdown</strong><br />
<strong>Automata</strong> -<br />
Equivalence<br />
to CFGs<br />
Robb T.<br />
Koether<br />
Homework<br />
Review<br />
Equivalence<br />
of PDAs and<br />
CFGs<br />
Proof ⇒<br />
Proof ⇐<br />
Long Example<br />
Example (Convert a PDA to a CFG)<br />
The variables are A pp , A pq , A pr , A qp , A qq , A qr , A rp , A rq ,<br />
and A rr .<br />
Short<br />
Example<br />
Assignment