Homework for the third week: set theory

Practice is absolutely critical in this class.

Groups are fine, turn in your own work. Homework is due in or before class on Mondays.

Most of these problems are purely mechanical. This is less work than it appears.

- Section 2.1:
- Problems 1-8
- Problems 11 and 17
- Problems 30 and 32
- Problems 62, 63, and 66
- Problems 68, 71, 74, and 78
- Problem 92

- Section 2.2:
- Problems 8, 10, 12, 14
- Even problems 24-34, using the text’s definitions of subset and proper subset

- Section 2.3:
- Problems 1-6
- Problems 10, 17, 18, 23, 24
- Problem 31
- Problem 33, rephrase using complements with respect to the common “universal” set A ∪ B ∪ C.
- Problems 61, 62
- Problems 72, 73
- Problems 117, 118, 121-124

Note that you may email homework. However, I don’t use Microsoft^{TM} products
(e.g. Word), and software packages are notoriously finicky about translating
mathematics.

If you’re typing it (which I advise just for practice in whatever tools you use), you likely want to turn in a printout. If you do want to email your submission, please produce a PDF or PostScript document.