Definition of deductive in English:

deductive

Line breaks: de¦duct|ive
Pronunciation: /dɪˈdʌktɪv
 
/

adjective

Characterized by or based on the inference of particular instances from a general law: deductive reasoning I used my deductive powers
More example sentences
  • According to Goodman, we formulate rules of deductive logic by taking our cue from intuitively valid deductive inferences.
  • The key thing about is that it is not, or at least not obviously, an instance of some general deductive or probabilistic principle.
  • The deductive inferences, however, are all valid.

Origin

mid 17th century: from medieval Latin deductivus, from deduct- 'deduced', from the verb deducere (see deduce).

Derivatives

deductively

adverb
More example sentences
  • Assuming that the account is correct, to know that an inference is deductively valid is to know that there are no situations in which the premisses are true and the conclusion is not.
  • But an argument is deductively valid if it is impossible for all its premises to be true and its conclusion false.
  • Other questions can be answered deductively, by referring to established rules; this is the case, for example, with mathematics, grammar and formal logic.

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