UGC NTA NET Exam Preparation: Classical square of opposition|Unit-6|Part-3|

 UGC NTA NET Exam Preparation: Classical square of opposition|Unit-6|Part-3|


The categorical proposition having same subject and predicate terms may differ in quality and quantity or in both. this differing is called Opposition.

1. All men are honest
2. Some men are honest
3. No men are honest
4. all of the above

quality=+(all, some) or -(no, some not)
quantity=(100, 50) or (100,50)


CONTRADICTORIES:

CONTRADICTORY OPPOSITION IS THE RELATION B/W 2 PROPOSITION HAVING SAME SUBJECT BUT DIFFERENT IN BOTH QUALITY AND QUANTITY.

CONTRARIES:

CONTRARY OPPOSITION B/W 2 PROPOSITION WHEN BOTH HAVE UNIVERSAL QUANTITY BUT AFFIRM THAT THE OTHER DENIES ITS PREDICATE OF THE SUBJECT

THE RELATIONSHIP B/W A AND E IS CALLED CONTRARIES.

  • IT IS ALWAYS UNIVERSAL
  • BOTH STATEMENTS CAN NOT BE TRUE AT THE SAME TIME BUT BOTH CAN BE FALSE
  • IF ONE IS TRUE, THEN THE OTHER WILL BE FALSE DEFINITELY.
  • IF ONE IS FALSE, OTHER WILL BE DOUBTFULL.
SUB CONTRATIES:
THE RELATION B/W TWO PARTICULAR PROPOSITION HAVING THE SAME SUBJECT AND PRECATE BUT DIFFERING IN QUALITY IS SUB-CONTRARY.
THE RELATION B/E I AND O IS CALLED SUB-CONTRARIES
I=O
  • IT IS ALWAYS B/W PARTICULAR
  • OPPOSITE TO CONTRARY
  • BOTH STATEMENT CAN NOT BE FALSE, BUT CAN BE TRUE.
  • IF ONE IS FALSE, THEN OTHER WILL BE TRUE DEFINITELY
  • IF ONE IS TRUE, OTHER WILL BE DOUBTFULL.
SUB-ALTERATION=A=I
                                      E=O
DIFFER IN QUANTITY ONLY BUT SAME QUALITY

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