Share this entry
obvert Syllabification: ob·vert
Pronunciation: /əbˈvərt/ /äb-/

Definition of obvert in English:


[with object] Logic
Alter (a proposition) so as to infer another proposition with a contradictory predicate, e.g., “no men are immortal to “all men are mortal.”.
Example sentences
  • An original statement is obverted, the result is converted and that result is obverted again.
  • In response to growing concern and upon the advice of a specially appointed committee, the rule was obverted.


Pronunciation: /əbˈvərZHən/ /äb-/
Example sentences
  • Obversion always works if it's done right.
  • Determine which of the three new moves: conversion, contraposition or obversion has taken place between the premise and conclusion of the argument.


Early 17th century (in the sense 'turn something until it is facing'): from Latin obvertere, from ob- 'toward' + vertere 'to turn'.

Definition of obvert in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources