|ad I 53
Functor/(s): (Prior: "just a functor") only provides requirements for the category to which it can be applied. - Does not produce true statement - does not lead to existence._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.
Objects of thought Oxford 1971
Arthur N. Prior
Papers on Time and Tense 2nd Edition Oxford 2003