The Commens Dictionary

Quote from ‘The Branches of Geometry; Existential Graphs [R]’


Necessity […] is that mode of being which is not subject to the principle of excluded middle, since it may neither be that A is necessarily B, nor that A is necessarily not B. [—] How can the principle of excluded middle fail to apply? By the function of determination being given over to the person addressed.

1905 [c.]
MS [R] 96
‘Necessity’ (pub. 24.11.15-16:29). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from
Nov 24, 2015, 16:29 by Mats Bergman
Last revised: 
Nov 24, 2015, 16:31 by Mats Bergman