Philosophy Lexicon of Arguments

Necessity, philosophy: different kinds of necessity are distinguished, differing in their strength. For example, physical, logical or metaphysical necessity. See also necessity de dicto, necessity de re.
Author Item Excerpt Meta data

Books on Amazon:
Frank C. Jackson
Schwarz I 226
A posteriori NotwendigkeitenJackson /Schwarz: folgen a priori aus kontingenten Wahrheiten ├╝ber die aktuelle Situation. (Lewis 1994b,296f,2002b, Jackson 1998a: 56 86).
Stalnaker I 18
Necessity a posteriori/Jackson: necessity a posteriori is a result of relatively superficial linguistic facts. It comes from an optional descriptive semantics which randomly characterizes natural languages: a mechanism to determine speakers. Thesis: there could also be languages without a fixed reference, which even tells to a certain extent how things are, namely without necessary truths a posteriori.
StalnakerVsJackson: however, if the reference-defining mechanisms are part of the meta-semantic history, they are not optional. They are part of the representation of what makes the fact that our utterances and internal states can have any representative properties at all. Necessary a posteriori truths are a feature of our intentionality.
Two-dimensional semantics/Stalnaker: two-dimensional semantics can show how the possible and the truth interact, i.e. to separate semantic from factual questions in the context.
I 19
But it does not provide a context-free canonical language, in which we can give a neutral representation of the possibility space.

Jack I
F. C. Jackson
From Metaphysics to Ethics: A Defence of Conceptual Analysis Oxford 2000

Schw I
W. Schwarz
David Lewis Bielefeld 2005

Sta I
R. Stalnaker
Ways a World may be Oxford New York 2003

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Ed. Martin Schulz, access date 2017-05-26