How can I disprove a contradiction using only a direct proof?

Question

Given: A and ~A

How can you prove: ~(A and ~A) using only a direct proof?

Answer 1

Holy c**p, what?

Use an actual example, and maybe you'll get actual answers.

Answer 2

A U ~A

~A U A

~A U ~~A

~(A U ~A)

Answer 3

You are not making sense.

Answer 4

This makes no sense...

How do you contradict letters A and ~A?

Well... Z and ~Z.   :]