perverse negative pervasionCheck Kathy Comment: One of the four types of perverse pervasions (khyab pa phyin ci log bzhi); an illustration of this type of reasoning is: whatever is a definiendum is necessarily not not-permanent (mtshon bya yin na / rtag pa ma yin pa ma yin pas khyab pa).Check Kathy
erroneous contradictory pervasion [among the 8 means of the reason pervading that which is to be established rtags gsal [R]
incorrect contradictory pervasion