|Realism, philosophy: realism is a collective term for theories which, in principle, believe that it is possible for us to acquire knowledge about objects of the external world that is independent from us as perceptual subjects. A strong realism typically represents the thesis that it would make sense to even create hypotheses about basically unknowable objects. See also metaphysical realism, internal realism, universal realism, constructivism.|
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Realism / Frege: Frege has a realistic interpretation of the language: the meaning of an expression is not determined by consciousness. That is not to say that expressions must represent external objects. But without reference, truth and falsehood the attempt to represent linguistic meaning and concepts will be in vain.
Die Grundlagen der Arithmetik Stuttgart 1987
Funktion, Begriff, Bedeutung Göttingen 1994
Logische Untersuchungen Göttingen 1993