# Thread: There exists a real number such that an integer is greater than it, right?

1. ## There exists a real number such that an integer is greater than it, right?

Hello,

-If there's a value "a" such that it's a real number, and there exists a "b" such that it's an integer and that b > a
-If there exists an "a" such that it's a real number and that, for all of "b" that's a real number, b> a

Both of these statements should be true, right? Because no matter what you can always add 1 more to any numbers. But apparently the first statement I listed is true, but the second is false.

2. Originally Posted by Lord Darkin
Hello,

-If there's a value "a" such that it's a real number, and there exists a "b" such that it's an integer and that b > a
-If there exists an "a" such that it's a real number and that, for all of "b" that's a real number, b> a

Both of these statements should be true, right? Because no matter what you can always add 1 more to any numbers. But apparently the first statement I listed is true, but the second is false.
The first statement says there exist a "b" that is > than a.

The second statement says all b are > than a.

If our set is the reals, the first is true and the second is false.

3. Thanks!

4. If there's a value "a" such that it's a real number, and there exists a "b" such that it's an integer and that b > a
I agree with dwsmith's post above, but, to be strict, the quoted statement is not well-formed from the standpoint of either mathematics or English. A sentence that has an "if" must also have a "then," even if it is only implied. The correct statement is, "If $\displaystyle a$ is a real number, then there exists an integer b such that b > a."