The Commens Dictionary
Quote from ‘Foundations of Mathematics [R]’
It is a perfection of a sign if it separately represents its object; in which case it becomes a proposition, and is true or false.
MS [R] 9:1
‘Proposition’ (pub. 20.08.17-16:48). 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-foundations-mathematics-r-1.