﻿ David M. Armstrong on Disjunction - Dictionary of Arguments

# Dictionary of Arguments

Disjunction: linking two or more statements by an inclusive "or". The disjunction is only false when all disjuncts are false. Notation v. See also adjunction, alternation, conjunction, compound sentences.

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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 Item Summary Meta data
III 15
Disjunction of prop > disjunctive predicates/Armstrong: a single predicate "M" could be used for "A or B or C" > "grue"/Armstrong: simplified form: green becomes blue and at the same time blue becomes green - new pair of pred: bleen/grue: nothing changes relative to the pair: green> blue: remains bleen, blue> green. Remains grue - but: a thing that remains blue changes relative to the new pair bleen/grue - Question: what kind of predicates priority?
III 68
Disjunction/Disjunctive Properties/System/Order/F.o.Th./Armstrong: Example, a natural system contains three fundamental laws: Fs are Gs, Hs are Js, Ks are Ls - these are united as follows: we define M: "an F or an H or a K" N: "a G or a J or an L" - then we have a single "fundamental law": "Ms are Ns" - then "F is an N": less informative but apparent improvement: G = J = L: no more information than "F is G v J v L". But if "N" is a true property, then "G", "J", "L" are merely artificial subdivisions (Armstrong pro) (f.o.th disjunction, identity) (>grue) - (s) otherwise we would always have to say "yellow or black Banana").
III 151
Disjunctive properties: being G or H": ArmstrongVs - Problem: disj. laws: does not the unrealized alternative need to be missing first? - disjunctional predicates always possible, but no real relation

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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.

Armstrong I
David M. Armstrong
Meaning and Communication, The Philosophical Review 80, 1971, pp. 427-447
In
Handlung, Kommunikation, Bedeutung, Georg Meggle, Frankfurt/M. 1979

Armstrong II (a)
David M. Armstrong
Dispositions as Categorical States
In
Dispositions, Tim Crane, London New York 1996

Armstrong II (b)
David M. Armstrong
Place’s and Armstrong’s Views Compared and Contrasted
In
Dispositions, Tim Crane, London New York 1996

Armstrong II (c)
David M. Armstrong
In
Dispositions, Tim Crane, London New York 1996

Armstrong II (d)
David M. Armstrong
Second Reply to Martin London New York 1996

Armstrong III
D. Armstrong
What is a Law of Nature? Cambridge 1983

> Counter arguments against Armstrong

Ed. Martin Schulz, access date 2018-10-21