Lesson 34b.

NOTE: Be sure to read Homework Format and Homework Writing Policy BEFORE writing up your solutions to be turned in.

Due Wednesday, April 2.

Sect. 5:

See Wildcat Sets, again and do the Problems 5 and 6 there.

Note 1. Some of these problems are DIFFERENT from the problems in the ORIGINAL Wildcat Sets problems assigned in the ORIGINAL Lesson 34. But these problems are unchanged from those in Lesson 34a.

Here are BRIEF solutions to Problems 1, 2, 3, and 4:

1. Yes.
2. Yes.
3. Yes.*
4. (a) NO.   (b)Yes.

* There is some (intentional) ambiguity in the phrasing of the given set in Problem 3. “The set of all students enrolled in a class” could mean either of the following:

• The set of all students such that for each student in the set, there exists a class ...
• The set of all students enrolled in one given class ...

In either case, however, the set is a wildcat set.

Note 2. Problems 5 and 6 each ask you if a certain “ iff ” statement is TRUE. It doesn't make sense to answer such a question with “Yes, this is a wildcat set.” If you believe the “ iff ” statement is true, you should explain or prove your answer in the usual way for proving an “ iff ” statement.

NOTE: Be sure to read Homework Format and Homework Writing Policy BEFORE writing up your solutions to be turned in.  In particular, recall the guidelines about EXPLAINING answers.

NOTE: As stated on the Course Home Page, all due dates are tentative. Assignments, or parts of assignments, may be postponed to a later date.

Last modified Mar 30, 2008 8:56 PM

Go to Lesson 35 (due Mar 24).

Go to Lesson 39 (due Apr 2).

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