Some Answers

Here are some scans of the answer manual
for Hurley's Intro to Logic, 7th edition.

Section 7.5 [Images 25-35 kb each.]
- Part 1
- Part 2
- Part 3
- Part 4
Section 7.6
- Part 1
- Part 2
- Part 3
- Part 4
- Part 5
Section 8.2
- Part 1
- Part 2
- Part 3
- Part 4
Section 8.3
- Part 1
- Part 2
- Part 3
- Part 4