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arXiv 1709.04832math.LO
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一元NM-代数

Monadic NM-algebras

Jun Tao Wang, Xiao Long Xin, Peng Fei He

摘要:

本文引入并研究了一元NM-代数:一类具有全称量词的NM-代数。同时,我们还得到了一元NM-代数成为一元布尔代数的条件。此外,我们还证明了一元NM-代数的多样性忠实于一元谓词NM逻辑中的量词公理。此外,我们还讨论了一元NM-代数与一些相关结构、类模态NM-代数和粗糙逼近空间之间的关系。此外,我们还研究了一元NM-代数中的一元滤子。特别地,我们刻画了单的和亚直不可约的一元NM-代数,得到了一元NM-代数的一个表示定理。最后,我们提出了一元NM-逻辑,并基于一元NM-代数证明了一元NM-逻辑的链完备性。这些结果构成了一个重要的第一步,为一元谓词NM逻辑提供了坚实的代数基础。

英文摘要:

In this paper, we introduce and investigate monadic NM-algebras: a variety of NM-algebras equipped with universal quantifiers. Also, we obtain some conditions under which monadic NM-algebras become monadic Boolean algebras. Besides, we show that the variety of monadic NM-algebras faithfully the axioms on quantifiers in monadic predicate NM logic. Furthermore, we discuss relations between monadic NM-algebras and some related structures, likeness modal NM-algebras and rough approximation spaces. In addition, we investigate monadic filters in monadic NM-algebras. In particular, we characterize simple and subdirectly irreducible monadic NM-algebras and obtain a representation theorem for monadic NM-algebras. Finally, we present monadic NM-logic and prove the (chain) completeness of monadic NM-logic based on monadic NM-algebras. These results constitute a crucial first step for providing a solid algebraic foundation for the monadic predicate NM logic.

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