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Home > Quote from "Grand Logic 1893: Division III. Substantial Study of Logic Chapter VI. The Essence of Reasoning"

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Digital Companion to C. S. Peirce
‘Ratiocination’ (pub. 03.02.13-09:34). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-grand-logic-1893-division-iii-substantial-study-logic-chapter-vi-essence-0.
Term: 
Ratiocination
Quote: 

St. Thomas Aquinas [Summa totius logicæ Aristotelis (Opusculum 48)] divides the operations of the Understanding in reference to the logical character of their products into
     Simple Apprehension,
     Judgment, and
     Ratiocination, or Reasoning. [—]

Ratiocination or reasoning produces inferences or reasonings, which are expressed by argumentations, as, ” I think, therefore I must exist,” “Enoch, being a man, must have died; and since the Bible says he did not die, not everything in the Bible can be true.”

Source: 
Peirce, C. S. (1893). Grand Logic 1893: Division III. Substantial Study of Logic Chapter VI. The Essence of Reasoning. MS [R] 408.
References: 
CP 4.38-39
Date of Quote: 
1893
URL: 

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