Two Kinds of Logic

Inductive reasoning start with observations, and arive at general conclusions. It is reasoning from particular experiences to general truth.

Opposite of inductive reasoning. It starts with general knowledge and then predict a specific observation.

Both inductive and deductive reasoning are used back and forth in problem solving; to solve complicated problems. The mingling of both types of logic is formalized as the scientific method. One must keep a notebook while solving problems to know where he/she is.