Three Chapters of Measure Theory in Isabelle/HOL
Three Chapters of Measure Theory in Isabelle/HOL
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《Isabelle/HOL》中的测度论三章
DOI:
10.1007/978-3-642-22863-6_12
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Armin Heller
中科院分区:
文献类型:
--
作者:
Johannes Hölzl;Armin Heller
Currently published HOL formalizations of measure theory concentrate on the Lebesgue integral and they are restricted to real-valued measures. We lift this restriction by introducing the extended real numbers. We define the Borelσ-algebra for an arbitrary type forming a topological space. Then, we introduce measure spaces with extended real numbers as measure values. After defining the Lebesgue integral and verifying its linearity and monotone convergence property, we prove the Radon-Nikodým theorem (which shows the maturity of our framework). Moreover, we formalize product measures and prove Fubini’s theorem. We define the Lebesgue measure using the gauge integral available in Isabelle’s multivariate analysis. Finally, we relate both integrals and equate the integral on Euclidean spaces with iterated integrals. This work covers most of the first three chapters of Bauer’s measure theory textbook.
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DOI:
--
发表时间:
2009
期刊:
Types for Proofs and Programs
影响因子:
--
作者:
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通讯作者:
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DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
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影响因子:
--
作者:
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影响因子:
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通讯作者:
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