6.5 Indirect Truth Tables
39:25
6.4 Truth Tables for Arguments
51:44
6.3 Truth Tables for Propositions
57:49
6.2 Truth Functions
34:26
1.4 Validity, Truth, Soundness, Strength, Cogency
24:04
7.6 Indirect Proof
22:46
A Crash Course in Fomal Logic Pt 7d: Indirect Truth Tables
26:44
1.5 Argument Forms: Proving Invalidity
53:04