The Commens Dictionary

Quote from ‘Deduction, Induction, and Hypothesis’


We may say, therefore, that hypothesis produces the sensuous element of thought, and induction the habitual element. As for deduction, which adds nothing to the premisses, but only out of the various facts represented in the premisses selects one and brings the attention down to it, this may be considered as the logical formula for paying attention, which is the volitional element of thought, and corresponds to nervous discharge in the sphere of physiology.

CP 2.643
‘Deduction’ (pub. 30.01.13-19:04). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from
Jan 30, 2013, 19:04 by Sami Paavola
Last revised: 
Jan 07, 2014, 01:00 by Commens Admin