Philosophy Lexicon of Arguments

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Dummett, Michael
 
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Logical Constants EMD II 105
Logical Constants/Inferences/Meaning/Wittgenstein/Dummett: the acceptance of a system of inferences (relationships, truth table) contributes to the meaning of the involved words - N.B.: because speakers can give their words a different meaning, forms of generally accepted inferences may not be philosophically criticized - by rejection of certain forms of inference we affect the meaning of the logical constants. - Truth condition: So we cannot accept it as a general principle for the detection of the meaning.
EMD II 107
Logical Constants/Dummett: some authors: Davidson meaning theory does not provide the meaning of the non-logical basic concepts itself, but rather the logical constants. - E.g. "London denotes London" belongs to the theory of sense". - Logical constants: from the axioms: e.g. "for each sentence S and T [S or T] is true if and only if S is true or T is true". - N.B.: the truth theory does not force us at al to assume the traditional meanings of the log. const. - if they may also have a different meaning in the meta language, we may even keep the classical axioms!
EMD II 109
Logical Constants/Meaning/Dummett: no circle: when the logical constants occur themselves in an effective proof, because we assume that we understand the construction of the proof. - Problem: undecidable sentences: no effective proof, then there is a circle, then the meaning of the logical constants is not clear.

Du I
M. Dummett
Urspr√ľnge der analytischen Philosophie Frankfurt 1992

Du III
M. Dummett
Wahrheit Stuttgart 1982

EMD II
G. Evans/J. McDowell
Truth and Meaning Oxford 1977

Ev I
G. Evans
The Varieties of Reference (Clarendon Paperbacks) Oxford 1989


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Ed. Martin Schulz, access date 2017-04-29