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Husted IV 449
Anti-realistic positions are: idealist, verificationist: phenomenalism, behaviorism, instrumentalism or positivism, intuitionism.
Topics: mostly evolve around the question of the existence of certain entities.
Thus, the phenomenalists deny the existence of physical, external objects as the actual constituents of reality.
Husted IV 450
Realism: Caution: for the realist, the recognizability of what makes our sentences true or false is absolutely irrelevant. Our sentences are true or false on the basis of an objective reality that exists independently from us.
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Martin Seel : the realist cannot make the nature of the world dependent on our knowledge. Therefore he cannot claim to know how the world is made at its heart of hearts.)
Husted IV 452
1) Objectivity thesis: Meaning is something objective.
Husted IV 453
2) Truth condition thesis: "understanding a sentence means to know its truth conditions, i.e. knowing that the sentence is true if this or that is the case.
3) Realism thesis: every sentence has a certain truth value.
Undecidable sentences: The understanding of such a sentence can therefore not manifest in linguistic practice.
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II 102
Realism/Dummett: sentences that are neither true nor false are no problem: just multi-valued logic - problem: in principle undecidable sentences - then the principle of bivalence is not assertible. >
Multi-valued logic/Dummett .