Philosophy Lexicon of Arguments

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Space-time, philosophy: space time is a three-dimensional space with time as a fourth dimension. The fact that time is interpreted as a dimension distinguishes the space-time from multi-dimensional mathematical spaces, in which time plays no role and which are therefore structured differently. In particular, the space-time has no measure which can equally be used for spatial distances as well as for time measurements. See also relativity theory, four-dimensionalism, world lines.

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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.

 
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I 81
Spacetime/Identification/KripkeVsHintikka/QuineVsHintikka/Hintikka: Kripke and Quine argue (for different reasons) that spacetime continuity does not always have a precise meaning.
SaarinenVsHintikka: the identity of individuals, which occur in several worlds, is not always well-defined for all these possible worlds.
Hintikka: ditto: it may be in belief contexts that an individual is identified under a description, but not under another description.
This must also be the case, otherwise we would be omniscient again.
Possible worlds: we must also be careful to adopt a "common reason" from all possible worlds. We certainly do not share a part of the space-time, but part of the facts. ((s) epistemic rather than ontologic).
World/Tractatus/Wittgenstein/Substance/Hintikka: in Wittgenstein, the world is the sum of the facts, not of the objects: to a shared space-time this would only be by additional assumptions.
Cross-world identification/Hintikka: the cross-world identification seems lost when we are dealing only with a lot of facts ((s) epistemically) and a common space-time is missing.
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I 82
Re-identification: re-identification of physical objects is necessary first to get to the cross-world identification later.
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I 90
Possible worlds/Hintikka: the expression possible world presupposes that a space-time is shared.


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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.

Hin I
Jaakko and Merrill B. Hintikka
The Logic of Epistemology and the Epistemology of Logic Dordrecht 1989

W I
J. Hintikka/M. B. Hintikka
Untersuchungen zu Wittgenstein Frankfurt 1996


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Ed. Martin Schulz, access date 2017-11-21