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Stream: learning: questions

Topic: topos where the Rosolini dominance isn't a sigma-frame

view this post on Zulip Madeleine Birchfield (Jul 08 2024 at 15:17):

Are there any examples of toposes where the Rosolini dominance isn't closed under countable joins?

view this post on Zulip Andrew Swan (Jul 08 2024 at 19:56):

That's a tricky one