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arXiv 2201.03242cs.LOmath.FA
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Bochner积分的Coq形式化

A Coq Formalization of the Bochner integral

Sylvie Boldo, François Clément, Louise Leclerc

摘要:

Bochner积分是Lebesgue积分的推广,适用于取值于Banach空间的函数。因此,它的数学定义和形式化的Coq证明助手更具挑战性,因为我们不能依赖于实数的性质。我们的贡献包括一个原始的形式化的简单功能,Bochner可积性定义的依赖型,和建设的证明可测函数的可积性在温和的假设(弱可分性)。然后,我们定义了Bochner积分,并证明了几个定理,包括控制收敛性和与现有的非负函数的Lebesgue积分形式化的等价性。

英文摘要:

The Bochner integral is a generalization of the Lebesgue integral, for functions taking their values in a Banach space. Therefore, both its mathematical definition and its formalization in the Coq proof assistant are more challenging as we cannot rely on the properties of real numbers. Our contributions include an original formalization of simple functions, Bochner integrability defined by a dependent type, and the construction of the proof of the integrability of measurable functions under mild hypotheses (weak separability). Then, we define the Bochner integral and prove several theorems, including dominated convergence and the equivalence with an existing formalization of Lebesgue integral for nonnegative functions.

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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