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Theorem frontier_Ici_subset

Modification history

2022-05-04 11:10
src/topology/algebra/order/basic.lean
feat(order/basic): Notation for `order_dual` (#13798) …
Modified frontier_Ici_subsetView on Github →
2021-03-09 21:43
src/topology/algebra/ordered.lean
feat(topology/constructions): frontier/interior/closure in `X × Y` (#6594)
Added frontier_Ici_subsetView on Github →