Zagadnienie istnienia świata

Let us ask: do the objects we think that exist, really exist? Davidson concludes, from rejection of dualism of content and conceptual scheme, that most of them really exist (coherentialism). Unfortunately, his reasoning is wrong, because though the rejection makes it impossible to doubt our knowledge as a whole, it is still possible to doubt all its elements one after another. The two main points of Davidson's theory are the following: (1) disquotationism (semantic terms are used only to speak about speaking) and (2) ostensivism (words refer to what they refer to independently of what it could be; their meanings are established as the result of the process of learning). (1) and (2) are the real reasons for Davidson's coherentialism. Ostensivism apparently allows to avoid the problem of induction, though it only transforms the problem into the question of ostension. Moreover, consistent ostensivism makes analytic sentences impossible. Yet it is claimed, that ostensivism is wrong in general, because besides ostensives there are also categorials (expressions, meanings of which belong to certain ontological categories) and without the latter logic and mathematics would be impossible. Davison's coherentialism is wrong because it is not true that one cannot have any believes without having any language. Hence, no theory of language is crucial as far as existence is concerned. It is shown considering ascription of believes to mute persons and learning languages by children. Coherentialism lets Davidson bring down the idea of a demon that could make us see the world completely different than it is and not know if it is true.