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Words nearby obversion
How to use obversion in a sentence
Dr. Bain calls this Material Obversion because it cannot be practised safely without reference to the matter of the proposition.Logic, Inductive and Deductive|William Minto
In this it differs from Obversion, Conversion, and Contraposition, each of which stands for one process.
Define Obversion and Inversion, and apply these processes also to the above three propositions.
A further process, known as Contraposition or Conversion by Negation, consists of conversion following on obversion.