Lecture2.ppt - From Truth Arguments Valid Or Invalid Not...

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Philosophical Method Logic: A Calculus For Good Reason Clarification, Not Obfuscation Distinctions and Disambiguation Examples and Counterexamples Revealing Our Deepest Convictions Testing Our Principles and Definitions
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Logic: Primary Philosophical Tool Logic Gives Us Rules For Reasoning Arguments And Their Parts Premises Sub and Main Conclusions Note: Relation Between Premises and Conclusion Is What Matters Calculus For Generating New Beliefs On Basis Of Old Ones
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Types Of Argument: Two Main Forms Of Inference Deductive Inference Validity: If The Premises Are True, The Conclusion Must Be True Distinguishing Validity
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Unformatted text preview: From Truth Arguments: Valid Or Invalid; Not True Or False Premises: True Of False; Not Valid Or Invalid Logicians Care More About Truth Preservation Than Truth Soundness: Valid AND True Premises Logical Schema Symbolic Variables Some Common Deductive Forms: Categorical Syllogism Modus Ponens Modus Tollens Non-Deductive Reasoning Inductive Inference Probability: If The Premises Are True, The Conclusion is Probably True Inference To Next Case Universal Generalization Inference To Best Explanation Appealing To Best Hypothesis Fallacies...
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This note was uploaded on 03/02/2012 for the course PHIL 10100 taught by Professor David during the Fall '08 term at Notre Dame.

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Lecture2.ppt - From Truth Arguments Valid Or Invalid Not...

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