منابع مشابه
The Ontology of Impossible Worlds
The best arguments for possible worlds. as states of affairs furnish us with equally good arguments for impossible worlds of the same sort. I argue for a theory of impossible worlds on which the impossible worlds correspond to maximal inconsistent classes of propositions. Three objections are rejected. In the final part of the paper, I present a menu of impossible worlds and explore some of the...
متن کاملA Classically-Based Theory of Impossible Worlds
a in the sense of ‘intensional’ that Yagisawa finds objectionable (i.e., having nonextensional identity conditions). On the present theory, though properties and relations are conceived intensionally (i.e., necessarily equivalent ones are distinguishable), they still have extensional identity conditions. It was noted in the first section of the paper that it is a consequence of our theory that ...
متن کاملImpossible worlds and logical omniscience: an impossibility result
In this paper, I investigate whether we can use a world-involving framework to model the epistemic states of non-ideal agents. The standard possible-world framework falters in this respect because of a commitment to logical omniscience. A familiar attempt to overcome this problem centers around the use of impossible worlds where the truths of logic can be false. As we shall see, if we admit imp...
متن کاملInteractive 3D Simulation of Escher-like Impossible Worlds
Maurits Cornelis Escher (1898-1972) is a famous Dutch artist known – amongst others – for his prints of impossible figures and impossible worlds. Many of his works illustrate mathematical and geometrical concepts such as perspective and limits. Works by Escher have motivated scientists over the years to discover the mathematical foundations of his work, ultimately leading to applications that a...
متن کاملQuantified Logic of Awareness and Impossible Possible Worlds
Among the many possible approaches to dealing with logical omniscience, I consider here awareness and impossible worlds structures. The former approach, pioneered by Fagin and Halpern, distinguishes between implicit and explicit knowledge, and avoids logical omniscience with respect to explicit knowledge. The latter, developed by Rantala and by Hintikka, allows for the existence of logically im...
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ژورنال
عنوان ژورنال: Noûs
سال: 2013
ISSN: 0029-4624,1468-0068
DOI: 10.1111/nous.12051