Originally Posted by

**cassiopeia1289** Yeah except I'm not really certain how to completely negate it all. I just know how to negate the specific one - ya know? Not "No integer x ..."

OK, a few little questions - sorry to bug you!

Determine whether sentence is a statement of open sentence or neither:

The plane is leaving in five minutes.

- technically it could be any plane - but the "the" in front suggests the specific one, therefore its a statement?

Get a note from your doctor.

-neither?

If n and m are even integers, then nm is even.

-statement - however it does have variables even though the truth doesn't depend on those variables because we've already specified that they have to be even

and:

for each statement, determine universal or existential quantifiers and rewrite as "for all..." or "there exits ... such that ..." Introduce variables when appropriate:

All positive real numbers have square roots.

-There exists a positive real number x such that x has a square root. -- yeah?