Update divisor.lean

2024-11-06 16:15:27 +01:00
parent 9d6801c329
commit a95c34fd05
1 changed files with 4 additions and 2 deletions
--- a/Nevanlinna/divisor.lean
+++ b/Nevanlinna/divisor.lean
@@ -87,5 +87,7 @@ theorem Divisor.finiteSupport
  (hU : IsCompact U)
  (D : Divisor U) :
  Set.Finite D.toFun.support := by
-
-  sorry
+  apply IsCompact.finite
+  · apply IsCompact.of_isClosed_subset hU (D.closedSupport hU.isClosed)
+    exact D.supportInU
+  · exact D.discreteSupport hU.isClosed