Mathlib v3 is deprecated. Go to Mathlib v4

Theorem filter.mem_iff_disjoint_principal_compl

Modification history

2022-01-18 12:22
src/order/filter/bases.lean
feat(topology/separation): add `t1_space_tfae` (#11534) …
Deleted filter.mem_iff_disjoint_principal_complView on Github →
2020-10-31 13:30
src/order/filter/bases.lean
refactor(order/filter): move some proofs to `bases` (#3478) …
Added filter.mem_iff_disjoint_principal_complView on Github →