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[Merged by Bors] - feat(topology/algebra/order/liminf_limsup): Eventual boundedness of neighborhoods #18629

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@YaelDillies YaelDillies commented Mar 21, 2023

Generalise bounded_le_nhds/bounded_ge_nhds using two ad hoc typeclasses. The goal here is to circumvent the fact that the product of order topologies is not an order topology, and apply those lemmas to ℝⁿ.


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@YaelDillies YaelDillies added awaiting-review The author would like community review of the PR blocked-by-other-PR This PR depends on another PR which is still in the queue. A bot manages this label via PR comment. t-topology Topological spaces, uniform spaces, metric spaces, filters t-order Order hierarchy labels Mar 21, 2023
@eric-wieser eric-wieser added the not-too-late This PR was ready at the point mathlib3 was frozen: we will try to merge it and port it to mathlib4 label Jul 15, 2023
@mathlib-dependent-issues-bot mathlib-dependent-issues-bot removed the blocked-by-other-PR This PR depends on another PR which is still in the queue. A bot manages this label via PR comment. label Aug 28, 2023
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@github-actions github-actions bot added the modifies-synchronized-file This PR touches a files that has already been ported to mathlib4, and may need a synchronization PR. label Aug 28, 2023
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urkud commented Sep 18, 2023

Thanks!
bors d+

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bors bot commented Sep 18, 2023

✌️ YaelDillies can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

@github-actions github-actions bot added delegated The PR author may merge after reviewing final suggestions. and removed awaiting-review The author would like community review of the PR labels Sep 18, 2023
Co-authored-by: Yury G. Kudryashov <[email protected]>
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bors merge

bors bot pushed a commit that referenced this pull request Sep 18, 2023
…eighborhoods (#18629)

Generalise `bounded_le_nhds`/`bounded_ge_nhds` using two ad hoc typeclasses. The goal here is to circumvent the fact that the product of order topologies is *not* an order topology, and apply those lemmas to `ℝⁿ`.
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@bors bors bot changed the title feat(topology/algebra/order/liminf_limsup): Eventual boundedness of neighborhoods [Merged by Bors] - feat(topology/algebra/order/liminf_limsup): Eventual boundedness of neighborhoods Sep 18, 2023
@bors bors bot closed this Sep 18, 2023
@bors bors bot deleted the bounded_le_nhds_class branch September 18, 2023 17:39
YaelDillies added a commit to leanprover-community/mathlib4 that referenced this pull request Oct 29, 2023
bors bot pushed a commit to leanprover-community/mathlib4 that referenced this pull request Nov 1, 2023
chenjulang added a commit to chenjulang/mathlib that referenced this pull request May 11, 2024
* commit '65a1391a0106c9204fe45bc73a039f056558cb83': (12443 commits)
  feat(data/{list,multiset,finset}/*): `attach` and `filter` lemmas (leanprover-community#18087)
  feat(combinatorics/simple_graph): More clique lemmas (leanprover-community#19203)
  feat(measure_theory/order/upper_lower): Order-connected sets in `ℝⁿ` are measurable (leanprover-community#16976)
  move old README.md to OLD_README.md
  doc: Add a warning mentioning Lean 4 to the readme (leanprover-community#19243)
  feat(topology/metric_space): diameter of pointwise zero and addition (leanprover-community#19028)
  feat(topology/algebra/order/liminf_limsup): Eventual boundedness of neighborhoods (leanprover-community#18629)
  feat(probability/independence): Independence of singletons (leanprover-community#18506)
  feat(combinatorics/set_family/ahlswede_zhang): Ahlswede-Zhang identity, part I (leanprover-community#18612)
  feat(data/finset/lattice): `sup'`/`inf'` lemmas (leanprover-community#18989)
  chore(order/liminf_limsup): Generalise and move lemmas (leanprover-community#18628)
  feat(algebraic_topology/dold_kan): The Dold-Kan equivalence for abelian categories (leanprover-community#17926)
  feat(data/sum/interval): The lexicographic sum of two locally finite orders is locally finite (leanprover-community#11352)
  feat(analysis/convex/proj_Icc): Extending convex functions (leanprover-community#18797)
  feat(algebraic_topology/dold_kan): The Dold-Kan equivalence for pseudoabelian categories (leanprover-community#17925)
  feat(measure_theory/measure/haar_quotient): the Unfolding Trick (leanprover-community#18863)
  feat(linear_algebra/orientation): add `orientation.reindex` (leanprover-community#19236)
  feat(combinatorics/quiver/covering): Definition of coverings and unique lifting of paths (leanprover-community#17828)
  feat(set_theory/game/pgame): small sets of pre-games / games / surreals are bounded (leanprover-community#15260)
  feat(tactic/positivity): Extension for `ite` (leanprover-community#17650)
  ...

# Conflicts:
#	README.md
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