Psychology Dictionary of ArgumentsHome
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| Extensionality, philosophy: (also extensionality principle, extensionality thesis) an attempt to make the language distinct by taking complete sets of denoted objects as the meaning of the referring words. See also extensions, intensions, extensional language, ambiguity, propositional attitudes._____________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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Peter M. Simons on Extensionality - Dictionary of Arguments
Chisholm II 185 Extensionality/Quine: we assume space time points instead of "durable goods". SimonsVsQuine: language without continuants (permanent object) cannot be learned. Chisholm: probably time and modality, but not temporal or modal components: either a) accept phenomena, refuse extensionality or b) reject phenomena, demand extensionality for real lasting objects. >Entia Sukzessiva. SimonsVsChisholm: it is better to accept Aristotle things with unnecessary parts: trees simply consist of matter. This is more evidence than Wittgenstein's atoms. --- Simons I 3 Extensionality/Simons: if extensionality is rejected, more than one object can have exactly the same parts and therefore more than one object can be at the same time in the same place. Then we are dealing with continuants. Continuant/Simons: everything which is not an event is a continuant (see below) or everything that can have mass. >Continuants, >Parts. I 11 Extensional Mereology/CEM/extensionality/Simons: a characteristic property of extensional mereology is the relationship "part-of-or-identical-with". This corresponds with "less-than-or-equal" relationship. Overlapping: overlapping can be used as the only fundamental concept. Limiting case: separateness and identity. I 105f Part/VsExtensional Mereology/Simons: 1. A whole is sometimes not one of its own parts. 2. Sometimes it is not transitive. 3. The existence of "sum-individuals" is not always guaranteed. That means, that the axioms, for individuals who obey any predicate, are wrong. 4. Identity criteria for individuals who have all parts in common, are wrong. I 106 5. Provides a materialist ontology of four-dimensional objects. Part/Simons: thesis: there is no uniform meaning of "part". I 117 Extensionality/Simons: extensionality is left with the rejection of the proper parts principle: I 28 Proper Parts Principle/strong/strong supporting principle: if x is not part of y, then there is a z which is part of x and which is separated from y. Solution for distinguishing sum (Tib + Tail) and whole (process) Tibbles (cat). >Tibbles-expample. Simons: the coincidence of individuals is temporarily indistinguishable (perceptually). >Superposition: superposition means being at the same time in the same place._____________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. |
Simons I P. Simons Parts. A Study in Ontology Oxford New York 1987 Chisholm I R. Chisholm The First Person. Theory of Reference and Intentionality, Minneapolis 1981 German Edition: Die erste Person Frankfurt 1992 Chisholm II Roderick Chisholm In Philosophische Aufsäze zu Ehren von Roderick M. Ch, Marian David/Leopold Stubenberg, Amsterdam 1986 Chisholm III Roderick M. Chisholm Theory of knowledge, Englewood Cliffs 1989 German Edition: Erkenntnistheorie Graz 2004 Simons I P. Simons Parts. A Study in Ontology Oxford New York 1987 |
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> Counter arguments against Simons
> Counter arguments in relation to Extensionality
