[Merged by Bors] - chore: fix an implicit-reducible diamond in subfields

[sgouezel]

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[github-actions]

PR summary 0f22cd1449

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

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Declarations diff

No declarations were harmed in the making of this PR! 🐙

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.

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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).

[riccardobrasca]

!radar

[leanprover-radar]

Benchmark results for 1903dba against 0f22cd1 are in. There are significant results. @riccardobrasca

• ✅ build//instructions: -13.5G (-0.01%)

Large changes (1✅)

• ✅ build/module/Mathlib.FieldTheory.Relrank//instructions: -20.0G (-19.71%)

Small changes (1✅, 2🟥)

• 🟥 build/module/Mathlib.CategoryTheory.Category.Pairwise//instructions: +427.5M (+3.53%)
• ✅ build/module/Mathlib.Tactic.Linarith//instructions: -274.7M (-6.05%)
• 🟥 build/module/Mathlib.Tactic.MinImports//instructions: +131.4M (+2.62%)

[riccardobrasca]

Thanks!

bors merge

[mathlib-bors]

Pull request successfully merged into master.

Build succeeded:

• ci (staging) / Build
• ci (staging) / Post-CI job
• ci (staging) / Post-Build Step
• ci (staging) / Lint style