Introduction to Logic 15-Week Video Lecture Series
Use the following links to access my 15-week Introduction to Logic video lecture series:
Week 4: Natural Deduction for Propositional Logic: Rules of Implication I
Week 5: Natural Deduction for Propositional Logic: Rules of Implication II
Week 6: Natural Deduction for Propositional Logic: Rules of Replacement I
Week 7: Natural Deduction for Propositional Logic: Rules of Replacement II
Week 8: Natural Deduction for Propositional Logic: Conditional Proof and Indirect Proof
Week 9: Natural Deduction for Propositional Logic: Proving Logical Truths
Week 13: Conditional Proof & Indirect Proof in Predicate Logic