- #1

Devil Moo

- 44

- 1

1. Homework Statement

1. Homework Statement

Now, there is a statement ##A##.

Suppose ##A## is false.

It leads to contradiction.

So ##A## is true.

My question:

There are two statements ##A## and ##B##.

Suppose ##A## is true.

Further suppose ##B## is false.

It leads to contradiction.

Can I conclude that "if ##A## is true, then ##B## is false."

Moreover, how do I distinguish between "Proof by Contradiction" and "Proof by Exhaustion"?