Philosophy Lexicon of Arguments

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Operators, logic: operators are symbols for performing a function, e.g. and; or; if; then; etc.
 
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I 157f
Operator / sets / Field: from the operator exactly the same things that are __, the tings that are __ are obtained plus predicate functor {x I ...}.
I 220
Problem of actuality / Field: can not be solved by an actuality Operator - ((s) there is no point in just setting an operator before an expression.)
I 222
Problem of Quantities / possible worlds / Field: with possible worlds and cross world identity we could avoid the possibility operator - FieldVs: we wanted to avoid the ontology of pace-time-regions. - possible worlds / Field: only heuristically harmless.
~ I 249
Ontology / Theory / Mathematics / Anti-Realism / Field: e.g. metalogical terms such as consistency: instead of the predicate "the theory has the property of consistency": Operator: "It is consistent that the conjunction of the axioms is true" - ((s) ontologically economical - operator instead of a predicate.)

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 2017-05-23