PHIL 3000 Lecture Notes - Lecture 3: Material Conditional, False Dilemma, Supererogation
4 Feb 2018
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If a, then b" is true just in case a is false/b is true: a is the antecedent in if a, then b", b is the consequent in if a, then b". If a, then b" is true doesn"t imply that a is true: ex: if you do your chores, i will give you . If do chores, but don"t give , then & only then is the proposition false. If don"t do chores, but still give , then proposition is true. Department to teach : proposition is true b/c 1st & 2nd parts of the proposition are either both true/false. Fallacies: either formal/informal, argument that"s informally fallacious might not be invalid. If argument is formally fallacious, then it"s invalid: informally fallacious arguments result of bad reasoning. Hasty generalization: definition: making assumptions about a whole group/range of cases based on sample that"s inadequate, ex: jack plays video games; everyone who plays video games is lazy; therefore, jack is lazy.
