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Theorem filter.map_const_principal_coprod_map_id_principal

Modification history

2022-08-09 21:53
src/order/filter/basic.lean
chore(order/filter): move `filter.prod` and `filter.coprod` to a new file (#15937) …
Modified filter.map_const_principal_coprod_map_id_principalView on Github →
2021-03-06 17:06
src/order/filter/basic.lean
feat(order/filter/*, topology/subset_properties): define "coproduct" of two filters (#6372) …
Added filter.map_const_principal_coprod_map_id_principalView on Github →