CPSC 289 Sec 502: Quiz 11
April 24, 2007

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  1. (2 pts) What is the difference between an equivalence relation and a partial order?









  2. (1 pt) True or False: The partial order represented by the Hasse diagram below is a lattice.









  3. (2 pt) Consider the regular grammar G = (V,T,S,P), where
    V = {S,A,0,1}
    T = {0,1}
    P consists of the rules S -> 0S | 1A | 1 and A -> 1A | 1.
    Give a derivation for the string 011.