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le Edit View History BookmarksWindow Help uic.blackboard.com There is An Part I Using r Part llI: Using rules of inference for quantified statements (50 pt.)
le Edit View History BookmarksWindow Help uic.blackboard.com There is An Part I Using r Part llI: Using rules of inference for quantified statements (50 pt.) Write each of the following arguments in argument form. Then, use the rules of inference to show that each argument is valid. 1. Let P(x) be-x is a student in this class," Q(x) bex does not own a car," and R(x) be-r takes the subway every morning." where the domain consists of all people. a. (15 pt.) Jack is a student in this class. Jack does not own a car. Everyone who does not own a car takes the subway every morning. Therefore, someone in this class takes the subway every morning. Let P(x) be-x is a student in this class," Q(x) be .x owns a computer," and R(x) be-x can use a word processing program," where the domain consists of all people. b. (15 pt.) Every student in this class owns a computer. Everyone who owns a computer can use a word processing program. Kate is a student in this class. Therefore, Kate can use a word processing program. Let P(x) be 'x has taken Calculus : Q(x) be x has taken Program Design I," and R(x) be x has permission from the instructor to enroll in this class, where the domain consists of all students in this class 988 8 4
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