Theorem WithUpperSetTopology.IsUpperSet_toUpperSet_preimage

Modification history

2023-09-14 06:57
Mathlib/Topology/Order/UpperLowerSetTopology.lean
chore: tidy various files (#7137)
Deleted WithUpperSetTopology.IsUpperSet_toUpperSet_preimageView on Github →
2023-09-08 07:26
Mathlib/Topology/Order/UpperLowerSetTopology.lean
feat: Functoriality of `WithUpperSetTopology` (#6988) …
Added WithUpperSetTopology.IsUpperSet_toUpperSet_preimageView on Github →