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Learn theory of computation
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Module 6
Pushdown Automata
1
The 7-Tuple Definition of a Pushdown Automaton (PDA)
Define the formal 7-tuple structure of a Pushdown Automaton (PDA).
2
PDA Execution and Stack Trace
Trace the execution of a PDA on an input string, including stack manipulations.
3
Designing PDAs for Final State Acceptance
Design PDAs that accept languages by final state.
4
PDAs: Empty Stack Acceptance and Conversions
Design PDAs that accept languages by empty stack, and convert between the two acceptance criteria.
5
CFG to PDA Conversion
Convert a given CFG into an equivalent PDA that simulates leftmost derivations.
6
From PDA to CFG: The Equivalence Theorem
Explain the conceptual basis of converting a PDA to a CFG.
7
CFG Production Rules from PDA Transitions
Apply the formal construction to generate CFG production rules from the transitions of a given PDA.
8
Deterministic vs. Nondeterministic PDAs
Define Deterministic Pushdown Automata (DPDA) and identify languages that require nondeterminism.
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Context-Free Grammars and Languages
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Properties of Context-Free Languages