Question

HELP ME PLEASEE !!!!

Answer 1

Fran is doing an indirect proof with four given statements and one conclusion. How many of these statements must be false based on her assumption to contradict the assumption and prove the original conclusion?

Answer 2

Exactly three
All four
At least one
None of them

Answer 3

Uh This is an odd question.

I would say at least one.

Usually it goes like this

Prove A
Assume B
B implies C etc...etc leading to not B
Contradiction!

Answer 4

at most three
Because the first statement in an indirect proof is to assume the negation of the theorem to be proved, then one statement is false by design. That means that if there are N statements (excluding conclusion) in the indirect proof, at most (N - 1) will be true.