leanprover-community/mathlib4: fix(Topology): remove duplicate instance (#43450)
Recent commit on leanprover-community/mathlib4.
Why it matters Infrastructure signal: this may improve premise discovery, dependency retrieval, or library navigation for agents.
Skim cue Skim only the changed subsystem and whether it affects your Lean workflow.
Read if Open only if you are debugging Lean or mathlib locally.