|Operators, logic: operators are symbols for performing a function, e.g. and; or; if; then; etc._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. |
Possible Worlds/ Actuality Operator / Simons: with an a A.O. we can avoid reference to possible worlds - e.g. if there is a (non-empty) set in a world and all of its elements also exist in other world, then there is the set itself in that world - then without possible worlds:
CE N (a) N1(M(Ea u (x)[x ε a ⊃ A1 (E!x)] ⊃ Ea).
That is, when a part of b is in a world, then also in each world, in which b exists._____________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. The note [Author1]Vs[Author2] or [Author]Vs[term] is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.
Parts. A Study in Ontology Oxford New York 1987