What is the truth set of the predicate P(x), where the domain is the set of integers and P(x) : x

Question

What is the truth set of the predicate P(x), where the domain is the set of integers and P(x) : x < x^2

alprincenofl · Answer

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anonymous · Answer

What kind of math is that? Set theory?

alprincenofl · Answer

The unit of this homework is " Sets, Functions and Sequences" 
Computing and Informatics, Discrete Mathematics (Math 150)

loser66 · Answer

Let check the second one, it say x $\neq 0$ and x$\neq 1$
Oh oh... it turns b is correct
I am sorry for my hasty answer. I forgot Z

alprincenofl · Answer

Hope this solved question help?
What is the truth set of the predicate P(x) where the domain is the set of integers and P(x) is |x| = 1?
Solution: {-1,1}

zepdrix · Answer

This is really weird.
Even b seems a little off.

Like... you can't include x=1/2.
$$\Large\rm \frac{1}{2}\cancel{\lt}\frac{1}{4}$$
We would exclude all of the ... oh oh oh oh oh, they're integers :) never mind lolol

alprincenofl · Answer

So the true answer is "B", right?
Thanks @loser66 and thanks all

phi · Answer

x is restricted to integers.  the integers (... -2, -1, 0 ,1, 2, ... )
all work *except* x=0 or x=1
so the answer is  Z but not x=0 and not x=1.  
choice B