MATH 1190 Study Guide - Midterm Guide: Set Notation, Contraposition
8 Dec 2016
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Present your solutions in the accompanying booklet in the order that they appear on this paper. No notes, crib sheets or books are allowed. 1. (a) for 1 i , let ai be a set. Describe using set notation what is meant by i=1 ai. see page 134. Or from your class notes you will see that i=1 ai = {x : i z+, x ai} (b) let f : a b be a function from a set a to a set b. Define the set f 1(s) problem 43 section 2. 3 was assigned. To have done this problem it would have been necessary to read the text between problems 41 and 42 - where you can find the answer. If false, provide a counter-example. see definition 1 p. 3. (a) what is the negation of the proposition (p q) (q p). F f f q p (p q) (q p)
