蕴涵格的MP*-滤子

通过对模糊逻辑代数中传统MP-滤子的定义进行改造,在蕴涵格中引入MP*-滤子的概念,并由此构作了完整的同余关系和商代数结构;同时,引入优蕴涵格的概念,证明了优蕴涵格的素滤子定理,从而完满地建立了蕴涵格的一般滤子理论,研究结果表明,当蕴涵格特化为IMTL-代数、R0-代她、MV-代数时,MP*-滤子正好特化为传统的MP-...     

Fuzzy蕴涵代数的MP滤子

给出了Fuzzy蕴涵代数(简称FI代数)上的MP滤子的等价刻画和由非空子集生成的MP滤子的表示定理; 探讨了FI代数的MP滤子与偏序滤子之间的关系; 证明了一个FI代数上全体MP滤子之集在集合包含序下构成一个分配连续(代数)格,从而构成一个Frame.     

Fuzzy蕴涵代数的素MP滤子

对Fuzzy蕴涵代数(简称FI代数)的滤子理论作深入研究.首先对由非空集合生成的MP滤子的性质作进一步探讨;然后引入素MP滤子的概念并讨论其基本性质,给出了素MP滤子的若干等价刻画,证明了并半格FI代数的素MP滤子定理;最后利用素MP滤子概念时满足条件(S)的并半格FI代数的MP滤子格((L)MP(X),(∩))中的素元进行刻画.     

Fuzzy蕴涵代数的关联MP滤子和交换MP滤子

在Fuzzy蕴涵代数中对关联MP滤子和交换MP滤子的性质及应用作进一步研究.获得了关联MP滤子的若干新的等价刻画;利用交换MP滤子的性质给出了Fuzzy蕴涵代数成为可交换Fuzzy蕴涵代数的若干充要条件.     

剩余格蕴涵代数中多重模糊结合滤子的研究

在剩余格蕴涵代数中,首先提出了多重模糊结合滤子的概念,研究了其性质.然后,讨论了多重模糊结合滤子与模糊滤子之间的关系;接着,讨论了多重模糊结合滤子与多重模糊关联滤子之间的关系;最后,得到了在格H蕴涵代数中,不同的多重模糊结合滤子之间等价的结论.     

BL-代数的直觉模糊滤子度

提出BL-代数的直觉模糊滤子度的概念,给出其的等价刻画,并用直觉模糊滤子度来讨论BL-代数上的直觉模糊子集是直觉模糊滤子的程度.对于BL-代数的一个直觉模糊集,建立其(强)截集构成的滤子与其直觉模糊滤子度之间的关系.讨论了直觉模糊子集的交、直积的直觉模糊滤子度以及BL-代数的直觉模糊子集的同态像与逆像的直觉模糊滤子度.     

Fuzzy蕴涵代数的模糊正则滤子

在Fuzzy蕴涵代数中引入模糊正则滤子的概念并讨论其性质.获得了模糊正则滤子的若干等价刻画.深入考察了模糊正则滤子与其它类型的模糊滤子之间的关系,证明了一个模糊集是模糊Q-滤子当且仅当它既是模糊P-滤子又是模糊正则滤子的结论.     

剩余格的模糊滤子理论

运用模糊集的方法和原理进一步深入研究剩余格的滤子问题.在剩余格中引入了模糊预线性滤子,模糊可除滤子和模糊Glivenko滤子三类新的模糊滤子概念,给出了它们的若干性质和等价刻画.系统讨论了这三类模糊滤子以及模糊正关联滤子,模糊Boolean滤子,模糊MV滤子和模糊正则滤子间的相互关系,证明了一个模糊滤子为模糊MV滤子当且仅当它既是模糊正则滤子又是模糊可除滤子的结论.     

格蕴涵代数中的扩张滤子

在格蕴涵代数中提出了扩张滤子的概念,讨论了扩张滤子与滤子,扩张滤子与素滤子,扩张滤子与滤子的根,扩张滤子与准素滤子,扩张滤子与最大滤子之间的关系.得到了扩张滤子的一些性质.最后,证明了在格H蕴涵代数中,扩张滤子与扩张滤子的根相等.     

Fuzzy蕴涵代数的素模糊MP滤子

本文的目的是对Fuzzy蕴涵代数(简称FI代数)中的模糊MP滤子理论作进踊步深入研究。首先,引入素模糊MP滤子的概念并研究其性质,建立并证明了并半格FI代数的素模糊MP滤子定理;其次,在FI代数的素模糊MP滤子全体之集PFFMP(X)上构造了一个拓扑T,证明了拓扑空间(PFFMP(X),T)是T0空间。     

Some types of filters in MTL-algebras

The aim of this work is to introduce the concepts of IMTL-filters and strong MTL-filters in MTL-algebras and show that these filters are related to IMTL-algebras and strong MTL-algebras, respectively. We also introduce the concepts of EIMTL and associative filters in MTL-algebras. The relationships between these filters and quotient algebras that are constructed via these filters are described. We clarify that EIMTL, IMTL and fantastic filters coincide in BL-algebras, whereas they have different properties in MTL-algebras; moreover, the relations between them are delineated. We prove that strong filters include some current filters such as implicative, positive implicative and fantastic filters.     

On Special Implicative Filters

In her well-known book, Rasiowa states without proof that in implicative algebras there is a one-to-one correspondence between kernels of epimorphisms and the so-called special implicative filters, and that in the logic whose algebraic counterpart is the class of implicative algebras the deductive filters coincide with the special implicative filters. We show that neither claim is true, and how to repair the situation by redefining some of the notions involved. We answer other questions concerning special implicative filters, taking the theory of algebraizable logics of Blok and Pigozzi as a framework to approach the question in a systematic way.     

On fuzzy fantastic filters of lattice implication algebras

Fuzzification of a fantastic filter in a lattice implication algebra is considered. Relations among a fuzzy filter, a fuzzy fantastic filter, and fuzzy positive implicative filter are stated. Conditions for a fuzzy filter to be a fuzzy fantastic filter are given. Using the notion of level set, a characterization of a fuzzy fantastic filter is considered. Extension property for fuzzy fantastic filters is established. The notion of normal/maximal fuzzy fantastic filters and complete fuzzy fantastic filters is introduced, and some related properties are investigated.     

关于BL-代数的模糊滤子与模糊理想

在BL-代数中引入模糊超滤子和模糊固执滤子的概念,证明了如下条件对于BL-代数的非常数模糊滤子f来说是等价的:(1)f是布尔的和素的,(2)f是蕴涵的和素的,(3)f是超的,(4)f是固执的。应用模糊正蕴涵滤子给出G-代数的若干特征性质。提出BL-代数模糊理想的概念,给出一些重要例子,并通过例子说明在BL-代数中模糊理想一般不能由模糊滤子导出。同时,从模糊理想出发构造了商BL-代数,并建立了相应的同态基本定理。最后,研究了BL-代数的几类模糊理想及其相互关系,给出模糊布尔理想、模糊素理想、模糊超理想的特征性质。     

On (∈, ∈ ∨ q)‐fuzzy filters of R0‐algebras

In this paper, we introduce the notions of (∈, ∈ ∨ q)‐fuzzy filters and (∈, ∈ ∨ q)‐fuzzy Boolean (implicative) filters in R₀‐algebras and investigate some of their related properties. Some characterization theorems of these generalized fuzzy filters are derived. In particular, we prove that a fuzzy set in R₀‐algebras is an (∈, ∈ ∨ q)‐fuzzy Boolean filter if and only if it is an (∈, ∈ ∨ q)‐fuzzy implicative filter. Finally, we consider the concepts of implication‐based fuzzy Boolean (implicative) filters of R₀‐algebras (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

On the free implicative semilattice extension of a Hilbert algebra

Hilbert algebras provide the equivalent algebraic semantics in the sense of Blok and Pigozzi to the implication fragment of intuitionistic logic. They are closely related to implicative semilattices. Porta proved that every Hilbert algebra has a free implicative semilattice extension. In this paper we introduce the notion of an optimal deductive filter of a Hilbert algebra and use it to provide a different proof of the existence of the free implicative semilattice extension of a Hilbert algebra as well as a simplified characterization of it. The optimal deductive filters turn out to be the traces in the Hilbert algebra of the prime filters of the distributive lattice free extension of the free implicative semilattice extension of the Hilbert algebra. To define the concept of optimal deductive filter we need to introduce the concept of a strong Frink ideal for Hilbert algebras which generalizes the concept of a Frink ideal for posets.     

利用格蕴涵代数找出所有滤子的算法

格蕴涵代数中的滤子是格值逻辑推理中的一类重要代数结构．本文给出了利用格蕴涵代数的蕴涵运算表找出格蕴涵代数中所有滤子的方法．并举例说明该方法的有效性、可行性．     

n ‐fold filters in BL‐algebras

In this paper we introduce n ‐fold (positive) implicative basis logic and the related algebras called n ‐fold (positive) implicative BL‐algebras. Also we define n ‐fold (positive) implicative filters and we prove some relations between these filters and construct quotient algebras via these filters. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

BCI代数的软关联理想和软正定关联理想

给出BCI代数的软关联理想和软正定关联理想的概念,讨论软理想、软关联理想和软正定关联理想三者之间的关系,研究了两个软关联理想(软正定关联理想)的扩展交、限制交、限制并和限制差分的性质。