Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
@DenisNardin I am familiar with space-like Grothendieck toposes. I'm good with open sets being subobjects of the terminal object, but I would like this to be restated in terms of probes since that would (hopefully) be more spatially intuitive
