feat(RingTheory/PowerSeries/Substitution): add API #26961
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PR summary bc780624b0
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| File | Base Count | Head Count | Change |
|---|---|---|---|
| Mathlib.RingTheory.PowerSeries.Substitution | 1411 | 1412 | +1 (+0.07%) |
Import changes for all files
| Files | Import difference |
|---|---|
Mathlib.RingTheory.PowerSeries.Substitution |
1 |
Declarations diff
+ rescaleAlgHom
+ rescaleAlgHom_apply
+ rescaleAlgHom_def
+ rescale_eq
+ rescale_eq_subst
+ rescale_map_eq_map_rescale
+ rescale_map_eq_map_rescale'
+ subst_def
+ subst_linear_subst_scalar_comm
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
relativevalue is the weighted sum of the differences with weight given by the inverse of the current value of the statistic. - The
absolutevalue is therelativevalue divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).
mariainesdff
changed the title
| @@ -624,6 +624,18 @@ theorem rescale_mul (a b : R) : rescale (a * b) = (rescale b).comp (rescale a) : | |||
| ext | |||
| simp [← rescale_rescale] | |||
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| theorem rescale_map_eq_map_rescale' {S : Type*} [CommSemiring S] (φ : R →+* S) (r : R) (f : R⟦X⟧) : | |||
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Can we find a better way to distinguish this lemma than the prime suffix?
| rw [rescale_eq, RingHom.coe_coe, rescaleAlgHom_def, MvPowerSeries.rescaleAlgHom_apply] | ||
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| /-- When `p` is linear, substitution of `p` and then a scalar homothety is substitution of | ||
| the homothety then `p`. -/ |
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Suggested change
| the homothety then `p`. -/ | |
| the homothety then `p`. -/ |
| intro d hd | ||
| convert hp_lin d hd using 1 | ||
| simp [Finsupp.weight, Finsupp.linearCombination, Finsupp.degree] | ||
| rfl |
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This rfl seems to indicate missing API
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Co-authored-by: @AntoineChambert-Loir