Telvis Thompson
Math 215
Logic Sets and Proofs Exam #1 Study Guide
1. Identify each as a proposition. If it is a proposition, give its truth value.
a) The United States declared its independence from Britain on July 4, 1976
b) 2+3=5
c) He at the whole thi
Telvis Thompson
Math 215
Logic Sets and Proofs Chapter 1 Learning Project
Math 215-01 Solutions
1. List the elements of the set between brackets
a) cfw_xN | x is a perfect square and x<100
cfw_1, 4, 9, 16, 25, 36, 49, 64, 81
b) cfw_xZ | x2=256
cfw_16, -16
Telvis Thompson
Math 215
Logic Sets and Proofs Chapter 7 Learning Project
Math 215-01 Solutions
1. Prove or disprove There exists a real number such that x2=31
Since x= 31 3 solves the equation, it does exist
2. Prove or disprove The sum of two irrational