Definition of "deductively" [de•duct•ive•ly]

• In a deductive manner; using deduction (adverb)

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• "He should know that his inference that the civil rights leaders does not follow deductively from the evidence."
• "Its elementary counterpart is the theorem that the equational theories on a free algebra F (V), defined as the deductively closed sets of equations that use variables from V, are exactly its substitutive congruences."
• "From this philosophical standpoint it follows deductively that from the beginning no intelligent purpose guided evolution."