Skip to content

feat(RingTheory/Finiteness): Improve fg_induction#37484

Open
martinwintermath wants to merge 2 commits intoleanprover-community:masterfrom
martinwintermath:fg-induction
Open

feat(RingTheory/Finiteness): Improve fg_induction#37484
martinwintermath wants to merge 2 commits intoleanprover-community:masterfrom
martinwintermath:fg-induction

Conversation

@martinwintermath
Copy link
Copy Markdown
Contributor

@martinwintermath martinwintermath commented Apr 1, 2026

  • rename fg_induction to fg_induction'
  • include the FG-hypothesis into motive for fg_induction'. This is necessary, since it might be that P (M₁ ⊔ M₂) is only provable from P M₁and P M₂ if we can use that M₁ and M₂ are FG. Also, M₁.FG and M₂.FG are not provable from (M₁ ⊔ M₂).FG in general.
  • add new fg_induction variant that adds one 1-dimensional submodule at a time.
  • give expressive names to the induction start and induction step hypotheses.

Open in Gitpod

@github-actions
Copy link
Copy Markdown

github-actions bot commented Apr 1, 2026

PR summary 83b8b5c245

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

+ fg_induction'

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.


No changes to technical debt.

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).

@github-actions github-actions bot added the t-ring-theory Ring theory label Apr 1, 2026
@martinwintermath martinwintermath marked this pull request as ready for review April 1, 2026 11:00
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

t-ring-theory Ring theory

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants