Quote Originally Posted by Maniac©
The evidence or argument that compels the mind to accept an assertion as true.

The validation of a proposition by application of specified rules, as of induction or deduction, to assumptions, axioms, and sequentially derived conclusions.

A statement or argument used in such a validation.

There really isn't another way to explain it.
Those big words dont mean anything to me lol, put it in a more simple way.