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完全Heyting代数 - Wikipedia

完全Heyting代数

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数学特别是序理论中,完全 Heyting 代数是作为完全Heyting代数。完全 Heyting 代数是三个不同范畴对象,它们是范畴 CHey,locales 的范畴 Loc,它的对偶 frames 的范畴 Frm

[编辑] 定义

考虑是完全格偏序集合 (P, ≤)。则 P 是完全 Heyting 代数,如果任何下列等价条件中的一个成立:

  • P 是 Heyting 代数,就是说运算 ( x \wedge - ) 有一个右伴随(也叫做(单调)伽罗瓦连接的下伴随),对于每个 P 的元素 x
  • 对于所有 P 的元素 x 和所有 P 的子集 S,下列无限分配律成立:
x \wedge \bigvee S = \bigvee \{ x \wedge s \mid s \in S \}
  • P 是分配格,就是说对于所有 P 中的 x, yz,有着
x \wedge ( y \vee z ) = ( x \wedge y ) \vee ( x \wedge z )
并且 P 是 交连续性的,就是说交运算 ( x \wedge - ) 对于所有 P 中的 x斯科特连续性的。

[编辑] 例子

完全 Heyting 代数引发自带有无限析取的(直觉)逻辑的Lindenbaum 代数

[编辑] 引用

  • P. T. Johnstone, Stone Spaces, Cambridge Studies in Advanced Mathematics 3, Cambridge University Press, Cambridge, 1982. (ISBN 0-521-23893-5)
Still a great resource on locales and complete Heyting algebras.
  • G. Gierz, K. H. Hofmann, K. Keimel, J. D. Lawson, M. Mislove, and D. S. Scott, Continuous Lattices and Domains, In Encyclopedia of Mathematics and its Applications, Vol. 93, Cambridge University Press, 2003. ISBN 0-521-80338-1
Includes the characterization in terms of meet continuity.
  • Francis Borceux: Handbook of Categorical Algebra III, volume 52 of Encyclopedia of Mathematics and its Applications. Cambridge University Press, 1994.
Surprisingly extensive resource on locales and Heyting algebras. Takes a more categorical viewpoint.
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