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111.
Andrew Moon 《Canadian journal of philosophy》2017,47(6):760-778
Philosophers commonly say that beliefs come in degrees (or that beliefs are graded or that there are partial beliefs). Drawing from the literature, I make precise three arguments for this claim: an argument from degrees of confidence, an argument from degrees of firmness, and an argument from natural language. I show that they all fail. I also advance three arguments that beliefs do not come in degrees: an argument from natural language, an argument from intuition, and an argument from the metaphysics of degrees. On the basis of these arguments, I conclude that beliefs do not come in degrees. 相似文献
112.
Neil Tennant 《Studia Logica》2005,80(2-3):369-391
I reformulate the AGM-account of contraction (which would yield an account also of revision). The reformulation involves using introduction and
elimination rules for relational notions. Then I investigate the extent to which the two main methods of partial meet contraction
and safe contraction can be employed for theories closed under intuitionistic consequence.
I would like to thank the organisers, Heinrich Wansing, Sergei Odintsov and Yaroslav Shramko, of the Dresden Workshop on Constructive
Negation, July 2–4, 2004, for providing the opportunity to present the ideas in this paper for the first time to a constructively
critical audience. I am grateful to Sven Ove Hansson for useful comments on an earlier draft. A special note of thanks is
owed also to Joongol Kim, who spotted a mistake in an earlier attempt of mine to prove a stronger form of Theorem 8.6. The
results in this paper were presented to the Central Division Meeting of the American Philosophical Association in Chicago
in April 2005. 相似文献
113.
以全部报告法和部分报告法为任务.在Kosslyn瞬时记忆模型框架下,探讨当刺激呈现和报告的方式按列进行时,被试注意窗的放置策略及其对瞬时记忆的影响。结果发现。部分报告优势在这种条件下也是存在的;因为长期的学习而导致的阅读习惯对注意窗放置策略的影响是稳定的;同时发现这种策略使得被试在按列进行的报告方式时,全部报告法和部分报告法的成绩都低于按行报告方式。文章还对上述实验发现作出了进一步的讨论。 相似文献
114.
We give a new characterization of the class of completely representable cylindric algebras of dimension 2 #lt; n w via special neat embeddings. We prove an independence result connecting cylindric algebra to Martin's axiom. Finally we apply our results to finite-variable first order logic showing that Henkin and Orey's omitting types theorem fails for L
n, the first order logic restricted to the first n variables when 2 #lt; n#lt;w. L
n has been recently (and quite extensively) studied as a many-dimensional modal logic. 相似文献
115.
The notion of a pseudo-interior algebra was introduced by Blok and Pigozzi in [BPIV]. We continue here our studies begun in [BK]. As a consequence of the representation theorem for pseudo-interior algebras given in [BK] we prove that the variety of all pseudo-interior algebras is generated by its finite members. This result together with Jónsson's Theorem for congruence distributive varieties provides a useful technique in the study of the lattice of varieties of pseudo-interior algebras. 相似文献
116.
117.
We give a complete axiomatization of the identities of the basic game algebra valid with respect to the abstract game board semantics. We also show that the additional conditions of termination and determinacy of game boards do not introduce new valid identities.En route we introduce a simple translation of game terms into plain modal logic and thus translate, while preserving validity both ways, game identities into modal formulae.The completeness proof is based on reduction of game terms to a certain minimal canonical form, by using only the axiomatic identities, and on showing that the equivalence of two minimal canonical terms can be established from these identities. 相似文献
118.
We give a coalgebraic view of the restricted Priestley duality between Heyting algebras and Heyting spaces. More precisely, we show that the category of Heyting spaces is isomorphic to a full subcategory of the category of all -coalgebras, based on Boolean spaces, where is the functor which maps a Boolean space to its hyperspace of nonempty closed subsets. As an appendix, we include a proof of the characterization of Heyting spaces and the morphisms between them. 相似文献
119.
Richard Holzer 《Studia Logica》2004,78(1-2):261-277
In this paper some properties of epi-representations and Schmidt-congruence relations of orthomodular partial algebras are investigated and an infinite list of OMA-epi-subdirectly irreducible orthomodular partial algebras will be constructed.Special issue of Studia Logica: Algebraic Theory of Quasivarieties Presented by
M. E. Adams, K. V. Adaricheva, W. Dziobiak, and A. V. Kravchenko 相似文献
120.
We introduce the variety
n
m
, m 1 and n 2, of m-generalized ukasiewicz algebras of order n and characterize its subdirectly irreducible algebras. The variety
n
m
is semisimple, locally finite and has equationally definable principal congruences. Furthermore, the variety
n
m
contains the variety of ukasiewicz algebras of order n. 相似文献