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Professor Dave Explains
Logic in Late Ancient Philosophy
Previously we outlined Aristotle's enormous contributions in establishing logic as a formal field of inquiry. So what happened after that? How did the minds that followed, many directly in his lineage, develop this field further? What is...
Khan Academy
Khan Academy: Fallacies: Denying the Antecedent
In this video, Matthew C. Harris explains the fallacy of denying the antecedent, the formal fallacy that arises from inferring the inverse of a conditional statement. He also explains why graduate students might also be humans. [3:35]
Khan Academy
Khan Academy: Fallacies: Formal and Informal Fallacies
In this video, Paul describes the distinction between formal and informal fallacies.