Relating to or characterized by logical reasoning from general principles to specific conclusions. Deductive reasoning moves from broad theories to particular instances.
From the same Latin root as 'deduce' - 'deducere' (to lead down). The adjective form developed in English to describe the type of reasoning that moves downward from general premises to specific conclusions, forming the backbone of formal logic and mathematics.
Remember the classic deductive example: 'All men are mortal (general), Socrates is a man (specific), therefore Socrates is mortal (conclusion).' You're deducting possibilities like a detective eliminating suspects!
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