Question

If I = {integers} and subset P = {positive integers}, what is P'?


{ }

{1, 2, 3, ...}

{2, 4, 6, ...}

{...-3, -2, -1, 0}

Answer 1

i believe it would be the last one, if P' represents the complement of P

reasoning is, the set I holds all integers from negative to positive. The subset P only holds positive integers, thus the complement to the positive integers is negative integers which would be P'

Answer 2

this is assuming that 0 only belongs in 1 set, however i guess

Answer 3

no its a negative integer. so the last one is wrong.

Answer 4

its either B or C. But im not sure :/

Answer 5

what does P' mean? the complement of P?

Answer 6

P = positive integer

Answer 7

yeah, however, what does P' mean?

Answer 8

it means POSITIVE........................

Answer 9

okay I know P stands for positive integers, but P' (notice the little prime mark) means something else

Answer 10

and therein lies your answer

Answer 11

No its the same....

Answer 12

well i am attempting to; i have in fact already answered your question, but you rejected my answer

the reason why you rejected it was because you think P = P', which it does not. Then the question you originally asked would be pointless.

P' (as already stated) is "the complement of P"



If P holds all positive integers, and P is a subset of the integers itself (both negative and positive), the complement to the positive integers is the negative integers.

thus, P = positive integers
P' = negative integers

both are subsets of I