Psychology Dictionary of Arguments

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Predicates, philosophy, logic: predicates are symbols that can stand in logical formulas for properties. In fact, not every predicate stands for a property, since it has contradictory predicates, but no contradictory properties. For example, one can think of a predicate "squaround" for "square and round", that is, two properties that exclude each other. One can then truthfully say "Nothing is squaround". There are therefore more predicates than properties. See also round square, scheme characters, quantification, 2nd level logic, predication, attributes, adjectives.

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

Stephen Schiffer on Predicates - Dictionary of Arguments

I 235
Predicate/property/realism/Schiffer: realism assumes (erroneously) that predicate and property are in the same relation as name and object.
>Proper names, >Object, >Predication, >Attribution.
Vs: there is no entity "the property to be modest".
Solution: the understanding of
"Mother Teresa is modest"
only requires knowledge of Teresa, not of modesty.
Properties/Schiffer: do not exist, they are not to find among the things which exist.
Cf. >Existence/Quine, >Properties/Quine.
But: in a loose sense ("there is", substitutional quantification) there are properties.
Nominalism: logical form of "Teresa is modest": Fa instead of Fab.
Schiffer: nominalism should nevertheless accept: E.g. "there is something that Teresa has, namely modesty" - but not: E.g. what Al and Betty have in common.
Solution/Schiffer: substitutional quantification: a substitution instance of "Teresa has X" is true.
>Substitutional quantification.
I 236
There are/exist/substitutional quantification/Lycan: (1979)(1): Allowes for example: "there are many things that do not exist". E.g. the monster of Loch Ness, etc ...

1. William G. Lycan (1979). "The trouble with possible worlds". In: Michael J. Loux (ed.), The Possible and the Actual. Cornell University Press

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.

Schi I
St. Schiffer
Remnants of Meaning Cambridge 1987

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