(April 2, 2014 at 5:39 pm)Alex K Wrote: Thats the definition of P:the set of all the subsets. Its size is thus the number of subsets.
Anyways, you're welcome
(April 2, 2014 at 5:33 pm)rasetsu Wrote: That's just whack. I changed my mind. I no longer want to go back to college and relearn all my math again.
Don't be too hard on yourself, this is horribly confusing
Fun fact about P: if you stick an infinite set in, you get again an infinite set, but with a larger infinity than the first.
(April 2, 2014 at 5:34 pm)SavageNerdz Wrote: Hmm i just find it strange it was asking for the amount of elements and the answer is actually the subsets present. Thank you Alex! I may have more questions to post if only my teacher broke it down like that..
Ok here's another one i've no clue where to start as it wasn't covered in class:
2.1.43. Find the truth set of each of these predicates where the domain is the set of integers.
P(x): x2 < 3
Q(x): x2 > x
c) R(x): 2x + 1 = 0
What's x2 suppposed to be?
I think you're simply supposed to give all the values for x such that these inequalities hold...
Once again the values are not given, going to get to class early tomorrow and ask my professor how the hell i'm supposed to do this.. He didn't even cover it T.T
~Lane~
