The Commens Dictionary
Quote from ‘The Bed-Rock Beneath Pragmaticism’
…the principle that logicians call “the Nota notae,” that the sign of a sign of anything, X, is itself a sign of the very same X…
‘Nota Notae’ (pub. 11.08.17-15:40). 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-bed-rock-beneath-pragmaticism-7.