Modus Tolens Share definition Flag The fucken sweetest logic this side of confusius! Modus Tolens is logic....if P then Q If Q then P Therefore... P = PQWINNING! Modus Tolens by J$$$$$$$$$$$$$ June 6, 2011 0 0 Get merch Get the Modus Tolens mug. Buy Now — $32.95 See more merch