# into to logic

 The flashcards below were created by user Anonymous on FreezingBlue Flashcards. Valid arguments can have false premises true A general statement makes a claim about one or more particular members of a class. false Since," "Because" and "Given that" are premise indicators. True A cogent inductive argument is strong and has all true premises. True In an invalid argument we know for certain that the conclusion must be false. False In a valid deductive argument if the premises are true it is impossible for the conclusion to be false. True In the counterexample method needs to rely on a substitution instance with indisputably true premises and an indisputably false conclusion. true Conclusions are used to prove premises. False The horizontal pattern consists of a single argument in which two or more premises provide independent support for a single conclusion. True The counterexample method enables us to prove that an argument is Invalid Extended arguments are easily subjected to logical analysis. False Only if taken together do conjoint premises provide support for a conclusion. true; conjoint premises support one another. without both of them, the argument doesn't make sense. A deductive argument is one in which the arguer claims that it is impossible for the premises to be true and the conclusion false. true; a deductive argument cannot have true premises and a false conclusion. In a conditional statement the antecedent comes before the consequent True; if ANTECEDENT then CONSEQUENT An invalid argument can be sound. Flase; invalid arguments are always unsound. A single conditional statement can be an argument. False; a conditionarl statement can never be an argument because it lacks certain qualities. A substitution instance is produced by uniformly substituting terms or statements in place of letters in an argument form. True; if A then B. Not A. Then B. "Therefore," "Hence" and "Thus" are conclusion indicators True AuthorAnonymous ID35337 Card Setinto to logic DescriptionChapter 1 vocab and questions Updated2010-09-17T13:35:18Z Show Answers