26:44

1.5 Argument Forms: Proving Invalidity

35:32

1.1 Basic Concepts: Arguments, Premises, & Conclusions

8:13

Deductive and Inductive Reasoning Flow Chart: Valid vs Invalid, Strong vs Weak, Sound vs Unsound

13:01

Lessons in Logic 4: Validity, Soundness, Strength, Cogency, and Their Opposites

26:02

1.2 Recognizing Arguments

40:40

Critical Thinking: Deductive and Inductive Arguments 1

6:50

Logical Reasoning (Sound, Valid & Invalid arguments - Deductive, Inductive, Abductive Logic)

36:07

1.3 Deduction & Induction