‘Monad’ (pub. 12.01.15-14:54). 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-logical-tracts-no-2-existential-graphs-eulers-diagrams-and-logical-algebra-15.
Quote:
A rhema which has one blank is called a monad; a rhema of two blanks, a dyad; a rhema of three blanks, a triad; etc.
Source:
Peirce, C. S. (1903 [c.]). Logical Tracts. No. 2. On Existential Graphs, Euler's Diagrams, and Logical Algebra. MS [R] 492.
URL:
http://www.commens.org/dictionary/entry/quote-logical-tracts-no-2-existential-graphs-eulers-diagrams-and-logical-algebra-15