Proof by contradiction would be used for which of the following?
A) The proof that the square root of five is irrational.
B) The proof that the sum of two odd numbers is an odd number.
C) The proof that the square of an even number is an even number.
D) The proof that if the cube of a number is divisible by three then the number is divisible by three.
E) none of these

Question

Proof by contradiction would be used for which of the following?
A) The proof that the square root of five is irrational.
B) The proof that the sum of two odd numbers is an odd number.
C) The proof that the square of an even number is an even number.
D) The proof that if the cube of a number is divisible by three then the number is divisible by three.
E) none of these

anonymous · Answer

http://www.people.vcu.edu/~rhammack/BookOfProof/Contradict.pdf