chore: changes to adapt to leanprover/lean4#2644#7606
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chore: changes to adapt to leanprover/lean4#2644#7606
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September 19, 2023 12:55
eric-wieser
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Oct 15, 2023
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| -- This lemma has always been bad, but lean4#2644 made `simp` start noticing | ||
| @[simp, nolint simpNF] | ||
| theorem ε_apply (r : R) : ε R r = Finsupp.single PUnit.unit r := |
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If ε is an implementation detail, then presumably we can use local simp here?
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Feel free to make such changes yourself, but otherwise I'm going to leave these for "later".
kim-em
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Oct 15, 2023
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| namespace NameSet | ||
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| /-- The union of two `NameSet`s. -/ | ||
| def append (s t : NameSet) : NameSet := | ||
| s.mergeBy (fun _ _ _ => .unit) t | ||
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| instance : Append NameSet where | ||
| append := NameSet.append | ||
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| end NameSet | ||
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You can ignore the changes to this file. They are needed here to get Mathlib to compile against this toolchain, but do not need to be reviewed.
eric-wieser
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Oct 16, 2023
eric-wieser
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Oct 16, 2023
eric-wieser
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Oct 16, 2023
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
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Closing in favour of the actual bump PR, #7703 |
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This includes all the changes from #7606. Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
This was referenced Feb 17, 2026
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leanprover/lean4#2644