I examine how Kant argues for the transcendental ideality of space. I defend a reading on which Kant accepts the ideality of space because it explains our (actual) knowledge that mathematical judgments are necessarily true. I argue that this reading is preferable over the alternative suggestion that Kant can infer the ideality of space directly from the fact that we have an a priori intuition of space. Moreover, I argue that the reading I propose does not commit Kant to incoherent modal views. If we carefully distinguish between different senses of modality, the fact that our spatial form of intuition is (in some sense) contingent does not undermine the claim that this form can explain how our mathematical judgments are (in some sense) necessary.

中文翻译：

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康德唯心主义的先验直觉与先验必然性

我研究康德如何论证空间的先验理想性。我为康德接受空间理想性的解读辩护，因为它解释了我们的（实际）知识，即数学判断必然为真。我认为，这种解读比康德可以直接从我们对空间有先验直觉这一事实推断出空间理想性的替代建议更可取。此外，我认为我建议的阅读不会使康德陷入不连贯的模态观点。如果我们仔细区分模态的不同意义，我们的直觉空间形式（在某种意义上）是偶然的这一事实并不会削弱这种形式可以解释我们的数学判断如何（在某种意义上）必要的主张。