18.404J | Fall 2020 | Undergraduate, Graduate

Theory of Computation

Video Lectures

Lecture 4: Pushdown Automata, CFG ↔ PDA

Description: Quickly reviewed last lecture. Defined context free grammars (CFGs) and context free languages (CFLs). Defined pushdown automata (PDA). Gave conversion of CFGs to PDAs. Stated the reverse conversion without proof.

Instructor: Prof. Michael Sipser

Course Info

Learning Resource Types
Lecture Videos
Problem Sets
Exams
Lecture Notes
Instructor Insights