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src/Pure/goal.ML
changeset 77879 dd222e2af01a
parent 76062 f1d758690222
child 78046 78deba4fdf27 
--- a/src/Pure/goal.ML	Tue Apr 18 21:47:40 2023 +0200
+++ b/src/Pure/goal.ML	Tue Apr 18 22:24:48 2023 +0200
@@ -57,7 +57,7 @@
   -------- (init)
   C \<Longrightarrow> #C
 *)
-fun init C = Thm.instantiate (TVars.empty, Vars.make [((("A", 0), propT), C)]) Drule.protectI;
+fun init C = Thm.instantiate (TVars.empty, Vars.make1 ((("A", 0), propT), C)) Drule.protectI;
 
 (*
   A1 \<Longrightarrow> ... \<Longrightarrow> An \<Longrightarrow> C
isabelle