from the GNU version of the Collaborative International Dictionary of English
- adj. a mode of demonstration in which proof is given by showing that any other supposition involves an absurdity (reductio ad absurdum), or an impossibility; thus, one quantity may be proved equal to another by showing that it can be neither greater nor less.
- n. (called also reductio ad absurdum), in which the correct conclusion is an inference from the demonstration that any other hypothesis must be incorrect.
Sorry, no etymologies found.
Sorry, no example sentences found.