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obversion
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The answer OBVERSION has 1 possible clue(s) in existing crosswords.
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The word OBVERSION is VALID in some board games. Check OBVERSION in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of obversion in various dictionaries:
The process of obverting or the condition so resulting.
Inference of the obverse of a proposition.
OBVERSION - In traditional logic, obversion is a "type of immediate inference in which from a given proposition another proposition is inferred whose subject is ...
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Translation of Obadiah turning up ... |
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Sep 6 2006 The Guardian - Cryptic crossword |
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The process of obverting or the condition so resulting. |
Logic Inference of the obverse of a proposition. |
Obversion description |
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In traditional logic, obversion is a "type of immediate inference in which from a given proposition another proposition is inferred whose subject is the same as the original subject, whose predicate is the contradictory of the original predicate, and whose quality is affirmative if the original proposition's quality was negative and vice versa". The quality of the inferred categorical proposition is changed but the truth value is the same to the original proposition. The immediately inferred proposition is termed the "obverse" of the original proposition, and is a valid form of inference for all types (A, E, I, O) of categorical propositions. * In a universal affirmative and a universal negative proposition the subject term and the predicate term are both replaced by their negated counterparts: * The universal affirmative ("A" proposition) is obverted to a universal negative ("E" proposition). * "All S are P" and "No S are non-P""All cats are animals" and "No cats are non-animals"The unive |