Exercise 9.
Consider the statement: for all integers \(n\text{,}\) if \(n\) is odd, then \(7n\) is odd.
Prove the statement. What sort of proof are you using?
Prove the converse. What sort of proof are you using?
Consider the statement: for all integers \(n\text{,}\) if \(n\) is odd, then \(7n\) is odd.
Prove the statement. What sort of proof are you using?
Prove the converse. What sort of proof are you using?