[Merged by Bors] - feat(topology): a few more results about compact sets #11905
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| @@ -872,6 +874,9 @@ theorem compl_inter (s t : set α) : (s ∩ t)ᶜ = sᶜ ∪ tᶜ := compl_inf | |||
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| @[simp] lemma compl_univ_iff {s : set α} : sᶜ = univ ↔ s = ∅ := compl_eq_top | |||
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| lemma compl_ne_univ : sᶜ ≠ univ ↔ s.nonempty := | |||
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| lemma compl_ne_univ : sᶜ ≠ univ ↔ s.nonempty := | |
| @[simp] lemma compl_ne_univ : sᶜ ≠ univ ↔ s.nonempty := |
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See linter error before last commit
| @@ -856,6 +856,8 @@ theorem not_mem_of_mem_compl {s : set α} {x : α} (h : x ∈ sᶜ) : x ∉ s := | |||
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| theorem mem_compl_iff (s : set α) (x : α) : x ∈ sᶜ ↔ x ∉ s := iff.rfl | |||
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| lemma not_mem_compl_iff {x : α} : x ∉ sᶜ ↔ x ∈ s := not_not | |||
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| lemma not_mem_compl_iff {x : α} : x ∉ sᶜ ↔ x ∈ s := not_not | |
| @[simp] lemma not_mem_compl_iff {x : α} : x ∉ sᶜ ↔ x ∈ s := not_not |
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Neither suggestions would be simp-lemmas accepted by the linter (the LHS is not in simp-normal form). bors merge |
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* Also a few lemmas about sets and `mul_support`.
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Pull request successfully merged into master. Build succeeded: |
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mul_support.