排序方式: 共有7条查询结果,搜索用时 0 毫秒
1
1.
Synthese - Substructural approaches to paradoxes have attracted much attention from the philosophical community in the last decade. In this paper we focus on two substructural logics, named... 相似文献
2.
3.
Pablo Cobreros Paul Egré David Ripley Robert van Rooij 《Journal of Philosophical Logic》2012,41(2):347-385
In this paper we investigate a semantics for first-order logic originally proposed by R. van Rooij to account for the idea
that vague predicates are tolerant, that is, for the principle that if x is P, then y should be P whenever y is similar enough to x. The semantics, which makes use of indifference relations to model similarity, rests on the interaction of three notions
of truth: the classical notion, and two dual notions simultaneously defined in terms of it, which we call tolerant truth and strict truth. We characterize the space of consequence relations definable in terms of those and discuss the kind of solution this
gives to the sorites paradox. We discuss some applications of the framework to the pragmatics and psycholinguistics of vague
predicates, in particular regarding judgments about borderline cases. 相似文献
4.
Pablo Cobreros 《Synthese》2011,183(2):211-227
Paraconsistent approaches have received little attention in the literature on vagueness (at least compared to other proposals).
The reason seems to be that many philosophers have found the idea that a contradiction might be true (or that a sentence and
its negation might both be true) hard to swallow. Even advocates of paraconsistency on vagueness do not look very convinced
when they consider this fact; since they seem to have spent more time arguing that paraconsistent theories are at least as
good as their paracomplete counterparts, than giving positive reasons to believe on a particular paraconsistent proposal. But it sometimes happens that
the weakness of a theory turns out to be its mayor ally, and this is what (I claim) happens in a particular paraconsistent
proposal known as subvaluationism. In order to make room for truth-value gluts subvaluationism needs to endorse a notion of logical consequence that is, in some sense, weaker than standard notions of
consequence. But this weakness allows the subvaluationist theory to accommodate higher-order vagueness in a way that it is not available to other theories
of vagueness (such as, for example, its paracomplete counterpart, supervaluationism). 相似文献
5.
Pablo Cobreros 《Studia Logica》2008,90(3):291-312
It is often assumed that the supervaluationist theory of vagueness is committed to a global notion of logical consequence, in contrast with the local notion characteristic of modal logics. There are, at least, two problems related to the global notion of consequence. First,
it brings some counterexamples to classically valid patterns of inference. Second, it is subject to an objection related to
higher-order vagueness. This paper explores a third notion of logical consequence, and discusses its adequacy for the supervaluationist theory.
The paper proceeds in two steps. In the first step, the paper provides a deductive notion of consequence for global validity
using the tableaux method. In the second step, the paper provides a notion of logical consequence which is an alternative
to global validity, and discusses i) whether it is acceptable to the supervaluationist and ii) whether it plays a better role
in a theory of vagueness in the face of the problems related to the global notion. 相似文献
6.
In a previous paper (see ??Tolerant, Classical, Strict??, henceforth TCS) we investigated a semantic framework to deal with the idea that vague predicates are tolerant, namely that small changes do not affect the applicability of a vague predicate even if large changes do. Our approach there rests on two main ideas. First, given a classical extension of a predicate, we can define a strict and a tolerant extension depending on an indifference relation associated to that predicate. Second, we can use these notions of satisfaction to define mixed consequence relations that capture non-transitive tolerant reasoning. Although we gave some empirical motivation for the use of strict and tolerant extensions, making use of them commits us to the view that sentences of the form ?? ${p {\vee} {\neg} p}$ ?? and ?? ${p {\wedge} {\neg} p}$ ?? are not automatically valid or unsatisfiable, respectively. Some philosophers might take this commitment as a negative outcome of our previous proposal. We think, however, that the general ideas underlying our previous approach to vagueness can be implemented in a variety of ways. This paper explores the possibility of defining mixed notions of consequence in the more classical super/sub-valuationist setting and examines to what extent any of these notions captures non-transitive tolerant reasoning. 相似文献
7.
Cobreros Pablo Egré Paul Ripley David van Rooij Robert 《Journal of Philosophical Logic》2020,49(6):1057-1077
Journal of Philosophical Logic - In a recent paper, Barrio, Tajer and Rosenblatt establish a correspondence between metainferences holding in the strict-tolerant logic of transparent truth ST+ and... 相似文献
1