Digital Companion to C. S. Peirce
1906 | The Basis of Pragmaticism | EP 2:382
…to say that one term, say u, is logically simpler than another, say w, means precisely that the affirmation of w concerning any subject implies the affirmative truth of u concerning the same subject, while the affirmation of u does not reciprocally imply the affirmative truth of w; and it may be remarked, by the way, that disquiparance is thus necessarily involved in logical simplicity: but we need not argue from that principle.
‘Logical Simplicity’. Term 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/term/logical-simplicity, 08.06.2023.