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Choose the right code : A deductive argument claims that :

I. The conclusion does not claim something more than that which is contained in the premises.
II. The conclusion is supported by the premise/premises conclusively.
III. If the conclusion is false, then premise/premises may be either true or false.
IV. If premise/combination of premises is true, then conclusion must be true.
Codes :

  • A.I and II
  • B.I and III
  • C.II and III
  • D.All the above

Answer: A

A deductive argument claims that its conclusion follows necessarily from its premises. So the conclusion does not go beyond what is contained in the premises (I), and the premises support it conclusively (II). Statement III is false: if the conclusion of a valid deductive argument is false, at least one premise must be false, so the premises cannot be either true or false. Because III is false, the options containing it, 'I and III', 'II and III' and 'all the above', cannot be right. The answer is I and II.

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