Psychology Dictionary of Arguments

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Sugar Trail Example: John Perry's thought experiment (J. Perry, The Problem of the Essential Indexical, 1979, Nous 13(1)3-21.). Perry wants to inform a supermarket customer, that he leaves a sugar trail behind him with his shopping car. After a tour through the market, he realizes that he himself is this customer. See also index words, reference, objectivity, ostension, identification, specification, self-ascription.
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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

John Perry on Sugar Trail Example - Dictionary of Arguments

Frank I 417f
Supermarket-Example/Perry: (Sugar trail, "Mess in the supermarket" - someone notes that it was he himself who has made a mess).
Opinion context: the reader, now.
Judgement context: the man at the supermarket.
Problem: the mere fact that I considered the proposition that I make a mess at any time for true, does not explain why I stopped. - The reader feels the same way and does not stop the cart.
N.B.: for me opinion context and judgement context coincide - but it is not a solution, because self-identification cannot do without a sentence with "I".
I 421f
Wanderer/supermarket/Perry: Solution: distinction opinion state/opinion: E.g. opinion state: "The event will begin" - "it begins now" - "it has begun" - opinion: all the time I believe that it starts at 12:00.
Opinion state: for all the same (with index word).
Opinion: different: not the same relation to the same subject.
VsTradition: if it were different, we would all have to expect a common believed proposition if all are in the same opinion state.
Normally one will adjust his opinion states when one goes from one context to the other to preserve his opinions.

See also sugar trail at the grocery store (>Supermarket-example
) . (Frank I 402ff).
>Two omniscient Gods.

See also >Identification, >Individuation, >Propositions, >Propositional knowledge, Self-identification, >Self-knowledge, >essential Indexicals.

John Perry (1979): The Problem of the Essential Indexicals, in : Nous 13
(1979), 3-21

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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.

Perr I
J. R. Perry
Identity, Personal Identity, and the Self 2002

Fra I
M. Frank (Hrsg.)
Analytische Theorien des Selbstbewusstseins Frankfurt 1994


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