Proof by Cases

I need help with a Mathematics question. All explanations and answers will be used to help me learn.

Prove by cases:

1) Statement: If ∈ ℤ, then

+ + is an odd integer.


2) Statement: If ∈ ℤ, then

− is even.


3) Prove the following statement by Proof by Contrapositive, and Proof by Contradiction:

Statement: If − is odd, then + is even


"Looking for a Similar Assignment? Order now and Get a Discount!

Open chat
Need a Paper Done?
Can we help you?