perf: unbundle algebra from ENormed*, April 2026 version

[grunweg]

Up-to-date version of #28803. Don't merge yet!

---

[grunweg]

!bench

[leanprover-radar]

Benchmark results for ad7dcd1 against 0446312 are in. (These commits have already been benchmarked in a previous command.) No significant results found. @grunweg

• ✅ build//instructions: -98.7G (-0.06%)

Medium changes (1✅)

• ✅ build/module/Mathlib.MeasureTheory.Group.FundamentalDomain//instructions: -9.9G (-10.30%)

Small changes (13✅)

• ✅ build/module/Mathlib.Algebra.Ring.Fin//instructions: -115.9M (-2.62%)
• ✅ build/module/Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Continuity//instructions: -3.0G (-2.27%)
• ✅ build/module/Mathlib.Analysis.Calculus.Taylor//instructions: -1.3G (-1.50%)
• ✅ build/module/Mathlib.Geometry.Manifold.VectorBundle.CovariantDerivative.Torsion//instructions: -590.4M (-1.87%)
• ✅ build/module/Mathlib.MeasureTheory.Measure.Prokhorov//instructions: -1.2G (-2.54%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.Bounds//instructions: -1.2G (-2.72%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.Cusps//instructions: -1.2G (-2.45%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.EisensteinSeries.Defs//instructions: -3.4G (-11.24%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.NormTrace//instructions: -1.2G (-3.88%)
• ✅ build/module/Mathlib.NumberTheory.NumberField.Ideal.Basic//instructions: -896.9M (-6.75%)
• ✅ build/module/Mathlib.Probability.Distributions.TwoValued//instructions: -507.9M (-3.84%)
• ✅ build/module/Mathlib.Probability.Process.LocalProperty//instructions: -623.3M (-2.03%)
• ✅ build/module/Mathlib.Topology.EMetricSpace.PairReduction//instructions: -830.6M (-2.17%)

[grunweg]

!bench

[leanprover-radar]

Benchmark results for ad7dcd1 against 0446312 are in. (These commits have already been benchmarked in a previous command.) No significant results found. @grunweg

• ✅ build//instructions: -98.7G (-0.06%)

Medium changes (1✅)

• ✅ build/module/Mathlib.MeasureTheory.Group.FundamentalDomain//instructions: -9.9G (-10.30%)

Small changes (13✅)

• ✅ build/module/Mathlib.Algebra.Ring.Fin//instructions: -115.9M (-2.62%)
• ✅ build/module/Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Continuity//instructions: -3.0G (-2.27%)
• ✅ build/module/Mathlib.Analysis.Calculus.Taylor//instructions: -1.3G (-1.50%)
• ✅ build/module/Mathlib.Geometry.Manifold.VectorBundle.CovariantDerivative.Torsion//instructions: -590.4M (-1.87%)
• ✅ build/module/Mathlib.MeasureTheory.Measure.Prokhorov//instructions: -1.2G (-2.54%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.Bounds//instructions: -1.2G (-2.72%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.Cusps//instructions: -1.2G (-2.45%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.EisensteinSeries.Defs//instructions: -3.4G (-11.24%)
• ✅ build/module/Mathlib.NumberTheory.ModularForms.NormTrace//instructions: -1.2G (-3.88%)
• ✅ build/module/Mathlib.NumberTheory.NumberField.Ideal.Basic//instructions: -896.9M (-6.75%)
• ✅ build/module/Mathlib.Probability.Distributions.TwoValued//instructions: -507.9M (-3.84%)
• ✅ build/module/Mathlib.Probability.Process.LocalProperty//instructions: -623.3M (-2.03%)
• ✅ build/module/Mathlib.Topology.EMetricSpace.PairReduction//instructions: -830.6M (-2.17%)

[github-actions]

PR summary 044631201f

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff

+ instance : ENormedAddMonoid ℝ≥0∞
- NormedCommGroup.toENormedCommMonoid
- instance : ENormedAddCommMonoid ℝ≥0∞

You can run this locally as follows

## summary with just the declaration names:
./scripts/pr_summary/declarations_diff.sh <optional_commit>

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

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

---

Increase in tech debt: (relative, absolute) = (2.00, 0.09)

Current number	Change	Type
23	2	disabled deprecation lints

Current commit ad7dcd1f02
Reference commit 044631201f

You can run this locally as

./scripts/reporting/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).