[Merged by Bors] - Feat: add notation IsOpen[t] and IsClosed[t]#1957
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[Merged by Bors] - Feat: add notation IsOpen[t] and IsClosed[t]#1957
IsOpen[t] and IsClosed[t]#1957Conversation
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Forward-ported from leanprover-community/mathlib3#18312 Also use `{}` arguments in `continuous_def` because otherwise Lean 4 can't use it in `simp` with non-standard instances.
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IsOpen[t] and IsClosed[t]IsOpen[t] and IsClosed[t]
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All these changes in Mathlib 3 were backported from this repository or were forward-ported earler. ## Port status pages * [`topology.basic`@`8631e2d5ea77f6c13054d9151d82b83069680cb1`..`bcfa726826abd57587355b4b5b7e78ad6527b7e4`](https://leanprover-community.github.io/mathlib-port-status/file/topology/basic?range=8631e2d5ea77f6c13054d9151d82b83069680cb1..bcfa726826abd57587355b4b5b7e78ad6527b7e4) * [`topology.separation`@`59694bd07f0a39c5beccba34bd9f413a160782bf`..`92ca63f0fb391a9ca5f22d2409a6080e786d99f7`](https://leanprover-community.github.io/mathlib-port-status/file/topology/separation?range=59694bd07f0a39c5beccba34bd9f413a160782bf..92ca63f0fb391a9ca5f22d2409a6080e786d99f7) * [`order.filter.basic`@`996b0ff959da753a555053a480f36e5f264d4207`..`24e75f1ee89ff37e99581084704f3f6a950db2ea`](https://leanprover-community.github.io/mathlib-port-status/file/order/filter/basic?range=996b0ff959da753a555053a480f36e5f264d4207..24e75f1ee89ff37e99581084704f3f6a950db2ea) * [`order.basic`@`d4f69d96f3532729da8ebb763f4bc26fcf640f06`..`1f0096e6caa61e9c849ec2adbd227e960e9dff58`](https://leanprover-community.github.io/mathlib-port-status/file/order/basic?range=d4f69d96f3532729da8ebb763f4bc26fcf640f06..1f0096e6caa61e9c849ec2adbd227e960e9dff58) * [`algebra.group.type_tags`@`6eb334bd8f3433d5b08ba156b8ec3e6af47e1904`..`2e0975f6a25dd3fbfb9e41556a77f075f6269748`](https://leanprover-community.github.io/mathlib-port-status/file/algebra/group/type_tags?range=6eb334bd8f3433d5b08ba156b8ec3e6af47e1904..2e0975f6a25dd3fbfb9e41556a77f075f6269748) ## Relevant PRs * `Topology.Basic`: #1957 * `Order.Filter.Basic`: #1953 * `Order.Basic`: #1738 * `Algebra.Group.TypeTags`: #945
mo271
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Feb 18, 2023
All these changes in Mathlib 3 were backported from this repository or were forward-ported earler. ## Port status pages * [`topology.basic`@`8631e2d5ea77f6c13054d9151d82b83069680cb1`..`bcfa726826abd57587355b4b5b7e78ad6527b7e4`](https://leanprover-community.github.io/mathlib-port-status/file/topology/basic?range=8631e2d5ea77f6c13054d9151d82b83069680cb1..bcfa726826abd57587355b4b5b7e78ad6527b7e4) * [`topology.separation`@`59694bd07f0a39c5beccba34bd9f413a160782bf`..`92ca63f0fb391a9ca5f22d2409a6080e786d99f7`](https://leanprover-community.github.io/mathlib-port-status/file/topology/separation?range=59694bd07f0a39c5beccba34bd9f413a160782bf..92ca63f0fb391a9ca5f22d2409a6080e786d99f7) * [`order.filter.basic`@`996b0ff959da753a555053a480f36e5f264d4207`..`24e75f1ee89ff37e99581084704f3f6a950db2ea`](https://leanprover-community.github.io/mathlib-port-status/file/order/filter/basic?range=996b0ff959da753a555053a480f36e5f264d4207..24e75f1ee89ff37e99581084704f3f6a950db2ea) * [`order.basic`@`d4f69d96f3532729da8ebb763f4bc26fcf640f06`..`1f0096e6caa61e9c849ec2adbd227e960e9dff58`](https://leanprover-community.github.io/mathlib-port-status/file/order/basic?range=d4f69d96f3532729da8ebb763f4bc26fcf640f06..1f0096e6caa61e9c849ec2adbd227e960e9dff58) * [`algebra.group.type_tags`@`6eb334bd8f3433d5b08ba156b8ec3e6af47e1904`..`2e0975f6a25dd3fbfb9e41556a77f075f6269748`](https://leanprover-community.github.io/mathlib-port-status/file/algebra/group/type_tags?range=6eb334bd8f3433d5b08ba156b8ec3e6af47e1904..2e0975f6a25dd3fbfb9e41556a77f075f6269748) ## Relevant PRs * `Topology.Basic`: #1957 * `Order.Filter.Basic`: #1953 * `Order.Basic`: #1738 * `Algebra.Group.TypeTags`: #945
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Forward-ported from leanprover-community/mathlib3#18312
Also use
{}arguments incontinuous_defbecause otherwise Lean 4can't use it in
simpwith non-standard instances.