Theorem TopCat.pullback_snd_image_fst_preimage

Modification history

2023-05-12 18:40
Mathlib/Topology/Category/Top/Limits/Pullbacks.lean
feat: port Topology.Category.Top.Limits.Pullbacks (#3802)
Added TopCat.pullback_snd_image_fst_preimageView on Github →