Question

Which of the following best describes an indirect proof? use definitions and postulates to deduce a conclusion. just accept a statement as true. assume a statement true and then show it must be false.

Answer 1

Assume a statement true and then show it must be false.

This is also called 'proof by contradiction'.

Answer 2

Assume a statement true and then show it must be false.

Explanation:

The following best describes an indirect proof - Assume a statement true and then show it must be false.

We first assume any particular given statement to be true, and then show it to be false by using contradiction.

This is a type of indirect proof which is also called proof by contradiction.