Let R be the domain of the predicate variable x. Which of the following are true and
Chapter 3, Problem 32(choose chapter or problem)
Let R be the domain of the predicate variable x. Which of the following are true and which are false? Give counter examples for the statements that are false.
a. \(x>2 \Rightarrow x>1\)
b. \(x>2 \Rightarrow x^{2}>4\)
c. \(x^{2}>4 \Rightarrow x>2\)
d. \(x^{2}>4 \Leftrightarrow|x|>2\)
Text Transcription:
x>2 Rightarrow x>1
x>2 Rightarrow x^2 >4
x^2 >4 Rightarrow x>2
x^2 >4 Leftrightarrow |x|>2
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