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Pushdown Automata - Hampden-Sydney College

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The Grammar Rules (Group 2)<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 Group 2 rules are<br />

A pr → A qq<br />

A qq → aA qq b<br />

Short<br />

Example<br />

Assignment

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