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chore: adaptations for nightly-2026-01-08 #158

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15cb93f
Merge master into nightly-testing
leanprover-community-mathlib4-bot Jan 8, 2026
d22cfc8
replace aesop proof
kim-em Jan 8, 2026
ddc0b46
chore: adaptations for nightly-2026-01-07
Jan 8, 2026
dea96b9
Auto-resolved conflicts in lean-toolchain and lake-manifest.json
Jan 8, 2026
076312a
chore: bump to nightly-2026-01-08
leanprover-community-mathlib4-bot Jan 8, 2026
86bc9ef
Merge commit '076312ad5fe9b334143151e4df0342a6359b38df' into bump/nig…
Jan 8, 2026
0cb76a8
chore: adaptations for nightly-2026-01-08
Jan 8, 2026
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9 changes: 9 additions & 0 deletions Mathlib/RingTheory/Valuation/Discrete/Basic.lean
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Expand Up @@ -132,7 +132,16 @@ instance : v.IsNontrivial := by
intro y x
specialize h1 x
aesop
#adaptation_note
/-- Until nightly-2026-01-07, this was:
```
aesop (add safe forward [generator_lt_one, generator_zpowers_eq_valueGroup])
```
-/
simp_all only [ne_eq]
have : generator v < 1 := generator_lt_one v
have : zpowers (generator v) = valueGroup v := generator_zpowers_eq_valueGroup v
simp_all only [zpowers_eq_bot, lt_self_iff_false]

lemma valueGroup_genLTOne_eq_generator : (valueGroup v).genLTOne = generator v :=
((valueGroup v).genLTOne_unique (generator_lt_one v) (generator_zpowers_eq_valueGroup v)).symm
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2 changes: 1 addition & 1 deletion lean-toolchain
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@@ -1 +1 @@
leanprover/lean4:nightly-2026-01-07
leanprover/lean4:nightly-2026-01-08