Material Logic

Material Logic. Any logical doctrine which considers the nature of the object reasoned about. The term is sometimes made a synonym of applied logic.

Formal logic classifies arguments by producing forms in which, the letters of the alphabet being replaced by any terms whatever, the result will be a valid, probable, or sophistic argument, as the case may be; material logic is a logic which does not produce such perfectly general forms, but considers a logical universe having peculiar properties.