Those statements may be used as true statements without proof. Dr. Horn ----- Original Message ----- From: Habib70725@xxxxxxx To: horn-math286@xxxxxxxxxxxxx Sent: Friday, February 28, 2003 7:30 PM Subject: [horn-math286] Re: Discrete math test Hello Mrs. Horn I hope that you feel better. I started working on my test and I wanted to know if I used the statements that "The difference of two integers gives an integer" and " The product of any two integers is an integer" Would I need to prove them or is it obvious that they are true. Please email back with the answer before Thursday. Thank you, Chadia Habib