tutorial_four_transparencies - What are the two kinds of...

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What are the two kinds of well-formed arguments? Cogency What is a cogent argument? An argument such that if the premises are true, then the conclusion is probably true. Remember : All cogent arguments are invalid; it is possible that the premises are all true yet the conclusion is false. In groups , complete questions C, E, and F on p. 87 . Put each argument into standard form, assigning appropriate variables, and assess whether the argument is well- formed . c. 1) Most joggers are healthy 2) Zola is a jogger 3) Zola is healthy A= Joggers B= healthy people x= Zola 1) Most A are B 2) x is an A
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3) x is a B Well-formed (cogent) e. 1) Some joggers are athletes 2) Zola is a jogger 3) Zola is an athlete A= joggers B= athletes x= Zola 1) Some A are B 2) x is an A 3) x is a B Ill-formed f. 1) All runners are athletes 2) Some athletes can’t swim 3) Swim Suit is a runner 4) Swim suit can’t swim A= runners B= athletes C= people who
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