[Merged by Bors] - refactor(topology): make two definitions irreducible from the start #6060
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sgouezel
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| attribute [irreducible] Hausdorff_edist | ||
| Hausdorff_edist s t = Sup ((λx, inf_edist x t) '' s) ⊔ Sup ((λx, inf_edist x s) '' t) := | ||
| by rw Hausdorff_edist |
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Should there be a refl! tactic or similar that does
by do tactic.reflexivity tactic.transparency.all
which also closes this goal?
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The point is precisely to not unfold after the definition, even altering the transparency setting, because this will not be possible in Lean 4 for the equivalent construct.
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