## Philosophy Lexicon of Arguments | |||

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. | |||

Author | Item | Excerpt | Meta data |
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Field, Hartry Books on Amazon |
Basic Concepts | 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 2017-04-26