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src/HOL/Tools/Quotient/quotient_tacs.ML
changeset 61853 fb7756087101
parent 61144 5e94dfead1c2
child 62913 13252110a6fe 
--- a/src/HOL/Tools/Quotient/quotient_tacs.ML	Tue Dec 15 16:57:10 2015 +0100
+++ b/src/HOL/Tools/Quotient/quotient_tacs.ML	Wed Dec 16 16:31:36 2015 +0100
@@ -755,7 +755,7 @@
 
 (* lifting as an attribute *)
 
-val lifted_attrib = Thm.rule_attribute (fn context =>
+val lifted_attrib = Thm.rule_attribute [] (fn context =>
   let
     val ctxt = Context.proof_of context
     val qtys = map #qtyp (Quotient_Info.dest_quotients ctxt)
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