Material Logic   

Material Logic

Commens
Digital Companion to C. S. Peirce
Material Logic
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1901-1902 [c.] | Definitions for Baldwin's Dictionary [R] | MS [R] 1147

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

1902 | Material Logic | DPP 2:44; CP 2.549

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.