__ Logic__ 1 a (1) : a science that deals with the principles and criteria of validity of inference and demonstration : the science of the formal principles of reasoning (2) : a branch or variety of logic <modal

2 : something that forces a decision apart from or in opposition to reason <the

__ Syllogism__ 1 : a deductive scheme of a formal argument consisting of a major and a minor premise and a conclusion (as in "every virtue is laudable; kindness is a virtue; therefore kindness is laudable")

2 : a subtle, specious, or crafty argument

3 : deductive reasoning

__ Deductive__ 1 : of, relating to, or provable by deduction

2 : employing deduction in reasoning

- de·duc·tive·ly

__ Inductive__ 1 : leading on : INDUCING

2 : of, relating to, or employing mathematical or logical induction <

3 : of or relating to inductance or electrical induction

4 : INTRODUCTORY

5 : involving the action of an embryological inductor : tending to produce induction

- in·duc·tive·ly