The Commens Dictionary

Quote from ‘Syllabus: Nomenclature and Division of Triadic Relations, as far as they are determined’


If parts of a proposition be erased so as to leave blanks in their places, and if these blanks are of such a nature that if each of them be filled by a proper name the result will be a proposition, then the blank form of proposition which was first produced by the erasures is termed a rheme. According as the number of blanks in a rheme is 0, 1, 2, 3, etc., it may be termed a medad (from μηδὲν, nothing), monad, dyad, triad, etc., rheme.

EP 2:299; CP 2.272
‘Rhema’ (pub. 18.08.13-20:12). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from
Aug 18, 2013, 20:12 by Sami Paavola
Last revised: 
Jan 12, 2015, 15:19 by Mats Bergman