What is an important drawback of deductive reasoning?
AIt is always invalid
BIt adds no new facts
CIt needs a huge sample
DIt can never be certain
Answer & Solution
Correct answer: B. It adds no new facts
1. A valid conclusion is already contained in its premises.
2. So deduction does not give genuinely new information.
3. Ampliative reasoning goes beyond the premises.
_Source: Wikipedia, Deductive reasoning, Difference from ampliative reasoning_
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