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AbstractThe study focuses on the development of the philosophical analysis of alethic modalities (possibility and necessity) in terms of possible worlds semantics in the analytical tradition from 20th century onwards. Possible worlds semantics has pro ven to be powerful and useful tool of philosophical analysis. However, in order to benefit from its use we have to philosophically scrutinize its central concept - the possible world. We have to clarify its ontological status, identity conditions and other important features, i.e. we have to create theory of possible worlds. Yet during that project we must not fall back into speculative metaphysics of the past, so much abhorred by contemporary analytic philosophy. The goal ofthis study is the defense of Actualism, one of the major theories of possible worlds, which in accordance with its slogan "Everything that exists is actual" treats possible worlds as abstract entities of certain kind representing the ways world might have been. Implicit aim of the study is the defense of the analytical metaphysics and its method as a distinguished discipline within analytic tradition. ln Chapter One it is shown how important role modality plays in our theoretical discourse and reasoning, several types of modalities are distinguished. Possible worlds are presented as useful tool...
Institute of Philosophy and Religious Studies
Ústav filosofie a religionistiky
Faculty of Arts