The Commens Dictionary
Quote from ‘Second Talk to the Phil. Club [and] Second Talk. On Deduction’
Mathematics is the practice of deduction.
MS [R] 754
‘Mathematics’ (pub. 19.10.15-18:45). 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-second-talk-phil-club-and-second-talk-deduction-0.