The Commens Dictionary

Quote from ‘Harvard Lectures on Pragmatism: Lecture V’

Quote: 

These three kinds of reasoning are Abduction, Induction, and Deduction. Deduction is the only necessary reasoning. It is the reasoning of mathematics. It starts from a hypothesis, the truth or falsity of which has nothing to do with the reasoning; and of course its conclusions are equally ideal. The ordinary use of the doctrine of chances is necessary reasoning, although it is reasoning concerning probabilities.

Date: 
1903
References: 
CP 5.145
Citation: 
‘Deduction’ (pub. 02.02.13-10:34). 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-harvard-lectures-pragmatism-lecture-v-2.
Posted: 
Feb 02, 2013, 10:34 by Sami Paavola
Last revised: 
Jan 07, 2014, 01:00 by Commens Admin