The Commens Dictionary

Quote from ‘Division III. Substantial Study of Logic. Chapter VI. The Essence of Reasoning’


the substantially possible refers to the information of a person who knows everything now existing, whether particular fact or law, together with all their consequences. [—] The terms, substantial necessity and substantial possibility […] refer to supposed information of the present in the present, including among the objects known all existing laws as well as special facts.

1893-1895 [c.]
MS [R] 409:106; CP 4.67
‘Substantial Possibility’ (pub. 06.03.18-16:37). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from
Mar 06, 2018, 16:37 by Mats Bergman