Deductive reasoning nature – UGC NET Question

Deductive reasoning is characterised by the claim that if the premises are true, the conclusion cannot be false. Its goal is truth preservation from premises to conclusion through a valid logical form. In such reasoning, counterexamples that make premises true and conclusion false are not allowed. Thus the type of reasoning described in the stem is deductive reasoning.

Option A:
Option A, inductive, deals with arguments where premises provide probable support for the conclusion rather than guaranteeing it. Inductive conclusions can still turn out false even if the premises are true. Therefore inductive reasoning does not match the strict necessity mentioned in the question.

Option B:
Option B is correct because deductive reasoning is defined by this requirement of necessary support: true premises should force the truth of the conclusion. Classic examples include syllogisms and formal proofs where validity ensures no loss of truth. This aligns directly with the wording of the stem.

Option C:
Option C, analogical, depends on similarities between cases to infer that what is true of one case is probably true of another. Its conclusions are at best probable and do not claim necessity. Hence analogical reasoning is not the correct answer.

Option D:
Option D, causal, focuses on cause–effect relations and may use either inductive or deductive patterns, but it is not defined solely by the necessary link between premises and conclusion. As a category it does not capture the essential feature of necessity highlighted in the stem.