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practice midterm 1

# practice midterm 1 - Math 135 Discrete Math Spring 2010...

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Sample Midterm 1 Name: Multiple Choice (5 points each) Indicate your answers by circling the correct one. Each question has exactly one correct answer. There are no trick questions here, but you should still read everything carefully. 1. Which of the following subsets is in P ( P ( )) × P ( { 1 , 2 , 3 } )? (Recall that we use P ( A ) to denote the powerset of a set A , and to denote the empty set.) (a) (b) ( , 1) (c) ( , { 1 , 2 } ) (d) ( { } , 2) (e) None of the above 2. Which of the following functions from ZZ to ZZ is not a bijection? (a)
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practice midterm 1 - Math 135 Discrete Math Spring 2010...

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