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Commens
Digital Companion to C. S. Peirce
‘Necessary Deduction’ (pub. 18.03.18-12:41). 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-graphs-little-account-r-0.
Term: 
Necessary Deduction
Quote: 

Necessary deduction is that sort of inference in which the fact concluded is conceived to be involved in the facts premised. It is the reasoning of mathematical demonstration.

Source: 
Peirce, C. S. (1903). Graphs, Little Account [R]. MS [R] S27.
References: 
MS [R] S27:1
Date of Quote: 
1903
URL: 

http://www.commens.org/dictionary/entry/quote-graphs-little-account-r-0