CSC 456/656 Assignment 3
Due date, October 2, 2003, 4:00 PM.
All assignments must be handwritten
(not typed or printed from a computer file)
in your own handwriting, on 8.5 by 11 inch paper. Write your name on
each sheet, and do not fold the pages or crimp the corners.
Turn the pages in to me or to the graduate assistant on the due date.
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Work this somewhat simplified version of problem 1.36 on page 89 of your
textbook:
Let Sigma = {1,+,=}, and let ADD =
{1n+1m=1n+m}.
Show that ADD is not a regular language, and then show that ADD is a
context-free language.
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Work Exercise 2.3 on page 120 of your textbook, but do not turn it in.
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Work Exercise 2.4(b,d,e,f) on page 120 of your textbook.
Draw PDA's which accept the languages given in (d) and (e).
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Work Exercise 2.9 on page 121 of your textbook.
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