Propositional Logic: Introduction
Posted September 9, 2012
http://www.criticalthinkingtutorials.com
This is the introduction to a video tutorial series titled "Basic Concepts in Propositional Logic", which you can preview and purchase at the link above.
List of Tutorials in this Course
Introduction... morehttp://www.criticalthinkingtutorials.com
This is the introduction to a video tutorial series titled "Basic Concepts in Propositional Logic", which you can preview and purchase at the link above.
List of Tutorials in this Course
Introduction
Part 1: Compound Claims
1.1 Conjunctions (A and B)
1.2 Disjunctions (A or B)
1.3 Conditionals (If A then B)
Part 2: Contradiction and Consistency
2.1 Contradictories (not-A)
2.2 Contradictories vs. contraries
2.3 Contradictions (A and not-A)
2.4 Consistent vs. inconsistent sets of claims
Part 3: Contradictories of Compound Claims
3.1 not-(not-A)
3.2 not-(A and B)
3.3 not-(A or B)
3.4 not-(If A then B)
Part 4: Ways of Saying "If A then B"
4.1 A if B
4.2 A only if B
4.3 A if and only if B
4.4 A unless B
4.5 The contrapositive: If not-B then not-A
4.6 (not-A) or B
4.7 Necessary and sufficient
Appendix: Categorical Claims and Their Contradictories
1. Categorical vs propositional logic
2. All A are B
3. Some A are B
4. Only A are B
5. Square of Opposition less
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