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Commens
Digital Companion to C. S. Peirce
‘Pure Logic’ (pub. 29.08.15-16:31). 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-pure.
Term: 
Pure Logic
Quote: 

…Pure Logic, a phrase often used, but to which no distinct conception can be attached. [—] Perhaps we may say that pure logic is a logic deduced from hypotheses (which some will look upon as axioms) without any inquiry into the observational warrant for those hypotheses.

Source: 
Peirce, C. S. (1902). Pure. In J. M. Baldwin (Ed.), Dictionary of Philosophy and Psychology, Vol. II (pp. 402). London: Macmillan and Co.
References: 
CP 2.544
Date of Quote: 
1902
URL: 

http://www.commens.org/dictionary/entry/quote-pure