to take away an amount from a total

the act of taking away an amount from a total

The quality of being deductive.

Third-person singular simple present indicative form of deduct

In a deductive manner; using deduction

Of, pertaining to, or based on deduction (process of reasoning). / (logic) Based on inferences from general principles.

(logic) A procedure for "discharging" assumptions from an inference, causing them to become antecedents of the conclusion; or vice versa. Symbolically, the conversion of an inference of the form P,A⊢C to an inference of the form P⊢A→C or vice versa, where ⊢ is the turnstile symbol. The validity of the procedure is a metatheorem of the given logical theory.

A kind of proof calculus in which logical reasoning is expressed by inference rules closely related to the "natural" way of reasoning, in contrast to axiomatic systems.

That is exempt from payment of income tax.

plural of deduction theorem