src/HOL/Tools/Predicate_Compile/predicate_compile_aux.ML
changeset 77879 dd222e2af01a
parent 74282 c2ee8d993d6a
--- a/src/HOL/Tools/Predicate_Compile/predicate_compile_aux.ML	Tue Apr 18 21:47:40 2023 +0200
+++ b/src/HOL/Tools/Predicate_Compile/predicate_compile_aux.ML	Tue Apr 18 22:24:48 2023 +0200
@@ -943,7 +943,7 @@
       Thm.instantiate
         (TVars.make [(dest_TVar uninst_T, Thm.ctyp_of ctxt' (U --> T')),
           (dest_TVar uninst_T', Thm.ctyp_of ctxt' T')],
-         Vars.make [((fst (dest_Var f), (U --> T') --> T'), Thm.cterm_of ctxt' f')]) th
+         Vars.make1 ((fst (dest_Var f), (U --> T') --> T'), Thm.cterm_of ctxt' f')) th
     val [th'] = Variable.export (Variable.declare_thm th' ctxt') ctxt [th']
   in
     th'