Philosophy Dictionary of ArgumentsHome
| |||
|
| |||
| Identity: Two objects are never identical. Identity is a single object, to which may be referred to with two different terms. The fact that two descriptions mean a single object may be discovered only in the course of an investigation._____________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. | |||
| Author | Concept | Summary/Quotes | Sources |
|---|---|---|---|
|
A. Prior on Identity - Dictionary of Arguments
I 63 Identity of classes: symbolic: ∏xEφxψx Identity/Relation-in-Extension: ∏x∏yEφxyψxy. Identity/thre-place predikates: ∏x∏y∏zEφxyzψxyz So you can go on and on up - or down to zero-place predicates (propositions). >Predicates, >Propositions, cf. >Predicates/Cresswell. I 62ff Identity/Prior: a "zero-place predicate": (0) Eφy i.e. "If φ then ψ and if ψ then φ" (spelling Lesniewski: E = equivalent) - which is the case when φ and ψ are the case, or not case when φ and ψ are not. >Definition, >Definability, >Facts, >Truth value. Truth value/Prior: so we imagine the term "truth value" for what we describe as the same, if the condition (0) is satisfied._____________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. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
Pri I A. Prior Objects of thought Oxford 1971 Pri II Arthur N. Prior Papers on Time and Tense 2nd Edition Oxford 2003 |
||
Ed. Martin Schulz, access date 2024-04-18