Philosophy Lexicon of Arguments

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Basic Concept: theories differ in what terms they choose as the basic concepts, which are not further defined. A definition of these concepts within the theory would be circular and may cause > paradoxes. E.g. The theory of mind by G. Ryle is based on the concept of disposition, other theories presuppose mental objects. See also paradoxes, theories, terms, definitions, definability, systems, explanations.
 
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I 32
Basic concept/B.C./Field/(s): it is impossible to say of a basic concept if it is, e.g., semantic or proof theoretical. E.g. implication as a basic concept.
I 33
This is the case with natural deduction (ND, Gentzen) (Implication: cannot be considered proof-theoretical in ND, in terms of the derivation procedure, because it occurs in it itself (circular). - Nevertheless, ND is more proof theoretical than semantic. - It is often quite reasonable to consider implication a basic concept.
I 34
Basic Concept/Field: (E.g. implication as basic concept) may be two things: a) primitive predicate - b) primitive operator.
I 197
Theory/Basic Concept/Predicate/Infinity/Davidson/Field: (Davidson, 1965): no theory can be developed from an infinite number of primitive predicates.
I 198
Solution/Field: we can characterize an infinite number of predicates recursively instead by using a final number of axiom schemes.
II 334
Quinean Platonism/Field: as the basic concept a certain concept of quantity from which all other mathematical objects are constructed. - So natural numbers and real numbers would actually be sets.

Fie I
H. Field
Realism, Mathematics and Modality Oxford New York 1989

Fie II
H. Field
Truth and the Absence of Fact Oxford New York 2001

Fie III
H. Field
Science without numbers Princeton New Jersey 1980


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Ed. Martin Schulz, access date 2017-05-28