+ equation_iff_nonsingular
+ equation_iff_nonsingular_of_Δ_ne_zero
+ instance : AddZeroClass W.Point
+ mk_XYIdeal'_neg_mul
++ instance : Neg W.Point
++ instance [Nontrivial R] : Zero W'.Point
+++ instance : Add W.Point
- instAddZeroClassPoint
- of
-- instNegPoint
-- instZeroPoint
--- instAddPoint

## 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.

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).