REDUCTIO AD ABSURDUM
reductio ad absurdum (ri-d<<schwa>>k-shee-oh or ri-d<<schwa>>k-tee-oh ad ab-s<<
schwa>>r-d<<schwa>>m). [Latin “reduction to the absurd”] In logic, disproof of an argument by
showing that it leads to a ridiculous conclusion. [Blacks Law 8th]