Meaning of obversion | Babel Free

Definitions

1. The act of turning toward or downward.
   countable, uncountable
2. An immediate inference that denies the opposite of something previously affirmed.
   countable, uncountable

Examples

“All men are mortal, so, by obversion, no men are immortal.”

“From 'warmth is agreeable' we can affirm, by formal obversion, 'warmth is not disagreeable, and not indifferent.' We cannot affirm, without an examination of the subject matter, 'cold is disagreeable.'”

CEFR level