Section outline

  • - Each regular language is accepted by an NFA

    -  The class of languages accepted by DFAs is closed under reversal

    - Right regular grammars, left regular grammars, DFAs and NFAs are equivalent

    - NFA with epsilon-transitions

    - epsilon-NFAs can be converted into equivalent DFAs

    - The class of languages accepted by DFAs is closed under union, product, and Kleene star

    - Deterministic two-way finite-state automaton (2DFA)

    • Slides for Lecture 4

      (Update: March 15, 2018)

    • The solutions to these problems are to be presented and discussed in the Seminary on  March 22, 2018.

    • This file contains solutions to selected problems from Assignment 4.