The Gromov-Hausdorff space is usually defined in textbooks as "the space of all compact metric spaces up to isometry". We describe a formalization of this notion in the Lean proof assistant, insisting on how we need to depart from the usual informal viewpoint of mathematicians on this object to get a rigorous formalization.
翻译:Gromov-Hausdorf空间通常在教科书中被定义为“所有紧凑度量空间的空间,直至异度测量 ” 。 我们描述在利昂校对助理中将这一概念正式化,坚持我们需要改变数学家在这方面通常的非正式观点,以获得严格的正规化。