3.3.13 Practice Problems and Answers 2: ND Rules of Replacement
21:39
3.3.12 Extra Practice Review: ND Rules 12-18
50:02
3.2.10 Practice Problems and Answers 1: ND Rules of Inference
13:13
3.2.6 Extra Practice Review: ND Rules 1-5
27:07
3.3.4 Extra Practice Review: ND Rules 6-11
33:05
3.4.4 Extra Practice Review: ND Extra CP and IP
22:45
3.5.4 Extra Practice Reivew: More ND Extra Practice Questions
13:12
Logical Equivalence Proof
2:18:41