Philosophy Lexicon of Arguments

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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.
 
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Books on Amazon:
Bertrand Russell
Prior I 163
Identity/Russell: "a=a" "the a is the a" is false if there is no a or if there are multiple a - Def self-identity/Russell: nevertheless Russell’s Law "x = x" is part of his system - "For some (any) f if x ft, then ft x" - if we define individual existence as Lesniewkian self-identity, then it comes out at a class which must be regarded as a class of one and which can be predicted from some, but not from all classes
- - -
R I 58
Identity/Principia Mathematica/Russell: no judgment! E.g. we do not judge that Socrates = Socrates. - In a way, we judge an ambiguous case of propositional function (propositional function) "A is A".
A propos I 111f
Containment/Identity/Element relations/Equal sign/Epsilon/Principia Mathematica/(s): therefore containment must not be the same as identity, otherwise from the right
i'x = i'x
follows the wrong
i'x ε i'x
i.e., a class may not be the identical with its (perhaps only) element.

R I
B. Russell/A.N. Whitehead
Principia Mathematica Frankfurt 1986

R II
B. Russell
Das ABC der Relativitätstheorie Frankfurt 1989

R IV
B. Russell
Probleme der Philosophie Frankfurt 1967

R VI
B. Russell
Die Philosophie des logischen Atomismus
In
Eigennamen, U. Wolf (Hg), Frankfurt 1993

R VII
B. Russell
Wahrheit und Falschheit
In
Wahrheitstheorien, G. Skirbekk (Hg), Frankfurt 1996

Pri I
A. Prior
Objects of thought Oxford 1971

Pri II
Arthur N. Prior
Papers on Time and Tense 2nd Edition Oxford 2003


> Counter arguments against Russell
> Counter arguments in relation to Identity



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Ed. Martin Schulz, access date 2017-05-24