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obvert

Pronunciation: /əbˈvəːt/

Definition of obvert

verb

[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’.

Derivatives

obversion

noun

Origin:

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

obvert in other Oxford dictionaries

Definition of obvert in the US English dictionary

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