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Unformatted text preview: -truth of premises (a)-validity (b)-soundness (a + b)-cogency (a + b + everybody can tell) Arguments can be:-valid/invalid-sound/not sound-cogent/not cogent Propositions (premises and conclusions):-true/false Truth is independent from validity. In a valid argument, the conclusion logically follows from the premises. Invalid arguments can have true premises. The conclusions of an invalid argument can be a true proposition. Different arguments can have the same conclusion Validity cannot vary from person to person. Truth can very from person to person....
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This note was uploaded on 04/21/2008 for the course PHIL 304 taught by Professor Roddy during the Summer '07 term at University of Texas.
- Summer '07