About

Mark Grannis teaches logic and history at The Heights School in Potomac, Maryland. He is the author of The Reasonable Person: Traditional Logic for Modern Life and its Teacher Supplement.

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Recent Lectures

• Lecture 11.4: Fallacies of Presumption
• Lecture 11.3: Fallacies of Misdirection
• Lecture 11.2: The Emotive Fallacies
• Lecture 11.1: The Ad Fontem Fallacies
• Lecture 10.5: Inductive Reasoning About Causation