Which of the following methods for making a proof does not involve the negation of a statement?

Question

anonymous · Answer

whats the rest of the problem?

anonymous · Answer

A)  reductio ad absurdum 
 B)  modus tollens 
 C)  direct proof 
 D)  indirect proof

anonymous · Answer

im trying, which do you think?

anonymous · Answer

The only one that does not involve a negation would be a direct proof.

anonymous · Answer

really! I was thinking it would be modus tollens...huh cool thanks.

anonymous · Answer

it is modus tollens!!!!!!!!!!!!

anonymous · Answer

http://weegy.com/?ConversationId=17C5AADF

anonymous · Answer

ok that's what I thought but I was not sure

anonymous · Answer

Thanks!!!!!!!!

anonymous · Answer

If there is a Republican President and a Democratic Congress, then there will likely be 

A)  a conference committee for debate. 
 B)  pro-Democratic legislation. 
 C)  a legislative stalemate. 
 D)  pro-Republican legislation