I agree not to consult others or use internet search engines…

I agree not to consult others or use internet search engines during this Exam. The answers I submit will be my own and will not be the result of consulting others, using cheating websites, or accessing resources that are not allowed. I recognize that my integrity and character are worth far more than points on an Exam, and I will behave accordingly.

Prove the following statement by proving the contrapositive….

Prove the following statement by proving the contrapositive.  “If n2 + 4 is odd then n is odd, for all n ∈ ℤ.” Use good proof technique.  Grading rubric:1 pt. State the contrapositive at the beginning, then prove it.1 pt. State any givens and assumptions.1 pt. Clearly explain your reasoning.1 pt. State the final conclusion at the end of the proof. Note:  To avoid the need for typing superscript exponents, you may use the expression ‘n-squared’ or ‘n^2’ to represent n2.