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[Merged by Bors] - feat: subtypes of a HereditarilyLindelofSpace are Hereditarily Lindelof#35305

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[Merged by Bors] - feat: subtypes of a HereditarilyLindelofSpace are Hereditarily Lindelof#35305
CoolRmal wants to merge 1 commit intoleanprover-community:masterfrom
CoolRmal:hereditarilylindelof

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PR summary fd6add7853

Import changes for modified files

No significant changes to the import graph

Import changes for all files
Files Import difference

Declarations diff

+ instance [HereditarilyLindelofSpace X] (p : X → Prop) :
- HereditarilyLindelof.lindelofSpace_subtype

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 scripts/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 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-topology Topological spaces, uniform spaces, metric spaces, filters label Feb 14, 2026
@CoolRmal CoolRmal changed the title feat: subtypes of a HereditarilyLindelofSpace is Hereditarily Lindelof feat: subtypes of a HereditarilyLindelofSpace are Hereditarily Lindelof Feb 14, 2026
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Thanks!
bors r+

@mathlib-triage mathlib-triage bot added the ready-to-merge This PR has been sent to bors. label Feb 15, 2026
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mathlib-bors bot commented Feb 15, 2026

Pull request successfully merged into master.

Build succeeded:

@mathlib-bors mathlib-bors bot changed the title feat: subtypes of a HereditarilyLindelofSpace are Hereditarily Lindelof [Merged by Bors] - feat: subtypes of a HereditarilyLindelofSpace are Hereditarily Lindelof Feb 15, 2026
@mathlib-bors mathlib-bors bot closed this Feb 15, 2026
@CoolRmal CoolRmal deleted the hereditarilylindelof branch February 15, 2026 07:54
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