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arXiv 1702.04551cs.LO
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归纳定义的若干共同原则及其对知识表示的启示

A Logical Study of Some Common Principles of Inductive Definition and its Implications for Knowledge Representation

Marc Denecker, Bart Bogaerts, Joost Vennekens

摘要:

该定义是人类专家知识的一种常见形式,是形式科学和数学的一个构建块,是数据库理论的基础,并且在许多知识表示和形式规约语言和系统中以各种形式得到支持。本文对科学文本中归纳定义的几种最常见的形式进行了形式化的研究:单调归纳定义、良基序上的归纳定义和迭代归纳定义。我们定义了一个逻辑的定义提供了一个统一的形式语法来表达定义的不同种类,我们定义其语义的忠实形式化的归纳过程。归纳定义的几个基本性质出现了:归纳过程的非决定性,归纳过程的汇合,归纳顺序的作用及其与归纳规则的关系,归纳顺序如何约束归纳过程,最终,归纳顺序是无关紧要的:定义的集合不依赖于归纳顺序。我们提出了一个归纳的建设能够构建的定义集,而不使用归纳顺序。我们调查的那种边界定义,出现在定义悖论。

英文摘要:

The definition is a common form of human expert knowledge, a building block of formal science and mathematics, a foundation for database theory and is supported in various forms in many knowledge representation and formal specification languages and systems. This paper is a formal study of some of the most common forms of inductive definitions found in scientific text: monotone inductive definition, definition by induction over a well-founded order and iterated inductive definitions. We define a logic of definitions offering a uniform formal syntax to express definitions of the different sorts, and we define its semantics by a faithful formalization of the induction process. Several fundamental properties of definition by induction emerge: the non-determinism of the induction process, the confluence of induction processes, the role of the induction order and its relation to the inductive rules, how the induction order constrains the induction process and, ultimately, that the induction order is irrelevant: the defined set does not depend on the induction order. We propose an inductive construction capable of constructing the defined set without using the induction order. We investigate borderline definitions of the sort that appears in definitional paradoxes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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