Phil 100 1st Edition Lecture 2 Outline of Last Lecture I. Arguments vs. Conceptsa. Definitions of arguments, premises, conclusions, valid, and cogentOutline of Current Lecture II. Valid Argument patternsCurrent Lecture:Valid Argument PatternsIf-then/All A’s are B’sIf A then B All A’s are B’s A x is an A------- -------------- B x is a BIf A then B All A’s are B’s~B x is not a B--------- -----------------~A x is not an Aiff (if and only if)A iff B A iff B A iff B A iff B A B ~A ~B----- ------ ------- --------These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.B A ~B ~AEither – OrA or B A or B ~A ~B-------- -------- B AFallacies (Invalid arguments)Fallacy of Affirming the Consequent (B)If A then B All A’s are B’s B x is a B------ ------------- A x is an AFallacy of Denying the Antecedent (A)If A then B All A’s are B’s ~A x is not an A--------- -------------------- ~B x is not a
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