An indirect proof is another name for a proof by contradiction. This is where the original premise is assumed to be false and then attempted to be proven. Because this proof turns out to be false, the original premise is then true.

The premise this question has is false.

There is no reason because the premise is false: a parallelogram is not a rectangle.

A premise is a statement or idea that forms the basis for a discussion or argument. You can use it in a sentence like this: The premise of their research is that social media has a significant impact on mental health.

True. If a premise supports a conclusion on its own, it also supports that conclusion independently because the validity of the conclusion is not dependent on any other premises in the argument. Each premise functions as a standalone reason supporting the conclusion.