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[Merged by Bors] - feat: shifted geometric series and a ProbabilityMeasure version of measure_iUnion_le#28087

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[Merged by Bors] - feat: shifted geometric series and a ProbabilityMeasure version of measure_iUnion_le#28087
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Open in Gitpod

measure_iUnion_le for ProbabilityMeasures
@github-actions github-actions bot added the new-contributor This PR was made by a contributor with at most 5 merged PRs. Welcome to the community! label Aug 7, 2025
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github-actions bot commented Aug 7, 2025

PR summary 3fb2e06161

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

+ ENNReal.tsum_two_zpow_neg_add_one
++ apply_iUnion_le

You can run this locally as follows
## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.


No changes to technical debt.

You can run this locally as

./scripts/technical-debt-metrics.sh pr_summary
  • The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
  • The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

@Whysoserioushah Whysoserioushah added the easy < 20s of review time. See the lifecycle page for guidelines. label Aug 7, 2025
Golfed by Kenny

Co-authored-by: Kenny Lau <kc_kennylau@yahoo.com.hk>
FormulaRabbit81 and others added 2 commits August 7, 2025 18:07
Co-authored-by: Kenny Lau <kc_kennylau@yahoo.com.hk>
Kenny golf
Co-authored-by: Kenny Lau <kc_kennylau@yahoo.com.hk>
FormulaRabbit81 and others added 3 commits August 11, 2025 15:06
Co-authored-by: Yaël Dillies <yael.dillies@gmail.com>
Co-authored-by: Yaël Dillies <yael.dillies@gmail.com>
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Thanks!

maintainer delegate

@YaelDillies YaelDillies changed the title feat: Lemma on a shifted geometric series and measure_iUnion_le for ProbabilityMeasures feat: shifted geometric series and a ProbabilityMeasure version of measure_iUnion_le Aug 13, 2025
FormulaRabbit81 and others added 2 commits August 13, 2025 11:13
Co-authored-by: Yaël Dillies <yael.dillies@gmail.com>
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bors d+

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mathlib-bors bot commented Aug 14, 2025

✌️ FormulaRabbit81 can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

@ghost ghost added the delegated This pull request has been delegated to the PR author (or occasionally another non-maintainer). label Aug 14, 2025
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bors r+

mathlib-bors bot pushed a commit that referenced this pull request Aug 14, 2025
…`measure_iUnion_le` (#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
@ghost ghost removed the delegated This pull request has been delegated to the PR author (or occasionally another non-maintainer). label Aug 14, 2025
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bors r+

mathlib-bors bot pushed a commit that referenced this pull request Aug 15, 2025
…`measure_iUnion_le` (#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
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bors r-

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mathlib-bors bot commented Aug 15, 2025

Canceled.

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@FormulaRabbit81 please merge master

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@FormulaRabbit81 please merge master

Sorry I'm new - does this mean run git fetch; git merge upstream/master on my branch? I ran this and it said already up to date

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No worries! Full response in a moment.

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I think that should work. I usually do git fetch upstream master. Let me know how that goes.

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mattrobball commented Aug 15, 2025

The reason bors was called off was because CI was failing. Most likely due to a bad interaction with changes from master in the interim.

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I think that should work. I usually do git fetch upstream master. Let me know how that goes.

Thanks! This did something resulting in this:

  • branch master -> FETCH_HEAD
    ab18fa8..3fb2e06 master -> upstream/master

Is there anything else I need to do before merging? I pushed after that but it didn't do anything

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Then git merge upstream/master and git push

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That is reproducing the error I saw. I haven't looked but superficially at it. Let me know if more questions come up while you investigate.

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That is reproducing the error I saw. I haven't looked but superficially at it. Let me know if more questions come up while you investigate.

Thanks so much for your help - all sorted now!

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Excellent. Fire away!

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bors r+

mathlib-bors bot pushed a commit that referenced this pull request Aug 15, 2025
…`measure_iUnion_le` (#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
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bors r-

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mathlib-bors bot commented Aug 15, 2025

Canceled.

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bors r+

mathlib-bors bot pushed a commit that referenced this pull request Aug 15, 2025
…`measure_iUnion_le` (#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
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mathlib-bors bot commented Aug 15, 2025

Pull request successfully merged into master.

Build succeeded:

@mathlib-bors mathlib-bors bot changed the title feat: shifted geometric series and a ProbabilityMeasure version of measure_iUnion_le [Merged by Bors] - feat: shifted geometric series and a ProbabilityMeasure version of measure_iUnion_le Aug 15, 2025
@mathlib-bors mathlib-bors bot closed this Aug 15, 2025
Julian added a commit to Aaron1011/mathlib4 that referenced this pull request Aug 16, 2025
* origin/master: (508 commits)
  feat(Logic/Basic): forall_and_index (leanprover-community#27737)
  feat(Algebra/intNorm): `x` divides `intNorm x` (leanprover-community#28021)
  feat(RingTheory/MvPolynomial/MonomialOrder): some lemmas about degree (leanprover-community#26000)
  chore: more elementary Motzkin polynomial proof (leanprover-community#28482)
  feat: e-seminormed monoid (leanprover-community#27385)
  feat(RingTheory): ` (⊥ : Ideal R) ^ n = ⊥` (leanprover-community#28171)
  fix(LinearAlgebra/Dimension/ErdosKaplansky): authorship (leanprover-community#28513)
  chore: golf entire `X_pow_eq_monomial` (leanprover-community#28504)
  feat(RingTheory): invertible modules and Picard group (leanprover-community#25337)
  chore: use delta `deriving` for leanprover-community#380 (leanprover-community#28498)
  feat: add bilinear maps for vector/matrix products (leanprover-community#28130)
  feat(Counterexamples): topologists' sine curve (leanprover-community#25833)
  feat(Analysis/Convex): doubly stochastic matrices have operator norm at most one (leanprover-community#28453)
  chore(Topology/Compactification): deprecate duplicate `ultrafilter_pure_injective` (leanprover-community#28436)
  feat: add `@[simp]` to `Multiset.cons_le_cons` and `Finset.insert_subset_insert` (leanprover-community#28285)
  feat: make `ring` work for semifields (leanprover-community#28494)
  feat: filtering lists and bounded quantifiers are primitive recursive (leanprover-community#26295)
  chore(Analysis/Analytic): split `Analytic.Basic` (leanprover-community#26270)
  refactor: tidy `mulVec` and `vecMul` lemmas about `•` (leanprover-community#28450)
  feat(Order/WellFounded): Acc and infinite descending chain (leanprover-community#28120)
  feat(NumberTheory/Padics): {Int,Rat}.padicValuation (leanprover-community#27667)
  chore(*): address a few timeout-related porting notes (leanprover-community#28483)
  feat(Algebra): toAlgebra_algebraMap (leanprover-community#28238)
  feat(Shrink): `IsCancelMul` instance (leanprover-community#28407)
  chore(Geometry): golf entire `chart_eq'` and `orthogonalProjection_orthogonalProjection` (leanprover-community#28485)
  feat: shifted geometric series and a `ProbabilityMeasure` version of `measure_iUnion_le` (leanprover-community#28087)
  chore(LinearAlgebra/PiTensorProduct): `rw` away use of `erw` in `lifts_zero` (leanprover-community#27554)
  feat(RingTheory): faithfully flat ring maps (leanprover-community#24530)
  chore(Geometry/RingedSpace): remove use of `erw` in `stalkSpecializes_stalkMap` (leanprover-community#27656)
  chore: add the Brownian motion project to downstream_repos.yml (leanprover-community#28459)
  feat(CategoryTheory/Sites/SheafOfTypes): composition of a sheaf with uliftFunctor is still a sheaf (leanprover-community#27816)
  feat(Valuation/DiscreteValuationRel): val relations with compatible valuations to Zm0 are IsDiscrete (leanprover-community#27213)
  chore(*): process a bunch of `aesop`-related porting notes (leanprover-community#28402)
  feat(CategoryTheory): abstract argument for the stability under transfinite compositions (leanprover-community#26030)
  chore: bump toolchain to v4.23.0-rc2 (leanprover-community#28454)
  chore(FieldTheory/Finite): fermat's little theorem in Nat form (leanprover-community#27962)
  feat(Combinatorics/SimpleGraph/Paths): add theorem `SimpleGraph.Walk.IsPath.concat` (leanprover-community#27582)
  feat(Slope): slope_pos_iff_of_le and related lemmas (leanprover-community#28039)
  feat: tactic analysis framework (leanprover-community#26683)
  chore(Data/EReal): deprecate `add_pos_of_nonneg_of_pos` and `add_ne_top_iff_of_ne_bot` (duplicates) (leanprover-community#28424)
  feat(MathlibTest/FieldSimp): add a few more tests (leanprover-community#28413)
  chore(RingTheory/HahnSeries): deprecate duplicate `orderTop_add_orderTop_le_orderTop_mul` (leanprover-community#28231)
  chore(AlgebraicGeometry/IdealSheaf): deprecate duplicate `AlgebraicGeometry.Scheme.IdealSheafData.Scheme.zeroLocus_radical` (leanprover-community#28202)
  feat(Algebra/Order): ArchimedeanClass ball (leanprover-community#27885)
  chore(Geometry/RingedSpace): remove use of `erw` in `isUnit_of_isUnit_germ` (leanprover-community#27660)
  feat(SkewMonoidAlgebra): coeff_mul lemmas (leanprover-community#27255)
  chore(LinearAlgebra): golf entire `isUnit_det` (leanprover-community#28438)
  chore(FieldTheory/IntermediateField): golf entire `coe_sum` and `coe_prod` (leanprover-community#28431)
  feat: separate linter error message for empty doc-strings (leanprover-community#27895)
  feat(RingTheory/PowerSeries/Binomial): add basic lemmas, golf (leanprover-community#27497)
  ...
Paul-Lez pushed a commit to Paul-Lez/mathlib4 that referenced this pull request Aug 23, 2025
…`measure_iUnion_le` (leanprover-community#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
pechersky pushed a commit to pechersky/mathlib4 that referenced this pull request Aug 25, 2025
…`measure_iUnion_le` (leanprover-community#28087)






Co-authored-by: FormulaRabbit81 <122625239+FormulaRabbit81@users.noreply.github.com>
@FormulaRabbit81 FormulaRabbit81 deleted the tsum_lemmas_mathlib branch August 30, 2025 12:07
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