Philosophy Lexicon of Arguments

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Classes: identity of classes provided by same elements (extension) - identity of properties by the same predicates (intension).

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.

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I 289
Class abstraction attributed to singular descriptions: (iy)(x)(x from y iff ..x..) - instead: x^(..x..) - does not work for intensional abstraction.
Difference classes/properties: classes are identical with the same elements - properties not yet identical if they are assigned to the same things.
II 29
Classes: one could reinterpret all classes in their complement: "no element of .." - you would never notice anything - Bottom layer: every relative clause, every general term determines a class.
II 100
Russell (Principia Mathematica) classes are things: they must not be confused with the concept of class - However: paradoxes also apply to class terms and propositional functions not only for classes -
Incomplete symbols (explanation by use) - to explain away classes.
VII 18
Classes/Quine: simplify our access to physics - but are still a myth.
VII 114
Classes/Quine: no accumulations or collections! E.g. the class of stones in a pile cannot be identified with the pile: otherwise another class could also be identified with the same pile: e.g. the class of stone molecules in the pile - the validity theory applies to classes, but not to the individual sentences - predicates are not names of classes, classes are the extension of predicates - classes are assumed to be pre-existent (see below).
IX 21
Classes/relations/Quine: are real objects if values ​​of bound variables.
IX 23
Class/individuals/Quine: everything is class! if we understand individuals to be identical to their class of one (i.e. not elementless).
IX 223
Classes/Quine: quantification through classes allows for terms that would otherwise be beyond our reach.

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.

W.V.O. Quine
Wort und Gegenstand Stuttgart 1980

W.V.O. Quine
Theorien und Dinge Frankfurt 1985

W.V.O. Quine
Grundzüge der Logik Frankfurt 1978

W.V.O. Quine
Mengenlehre und ihre Logik Wiesbaden 1967

W.V.O. Quine
Die Wurzeln der Referenz Frankfurt 1989

W.V.O. Quine
Unterwegs zur Wahrheit Paderborn 1995

W.V.O. Quine
From a logical point of view Cambridge, Mass. 1953

W.V.O. Quine
Bezeichnung und Referenz
Zur Philosophie der idealen Sprache, J. Sinnreich (Hg), München 1982

W.V.O. Quine
Philosophie der Logik Bamberg 2005

W.V.O. Quine
Ontologische Relativität Frankfurt 2003

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Ed. Martin Schulz, access date 2017-10-19