src/Pure/ML_Bootstrap.thy

 
 theory ML_Bootstrap
 imports Pure
 begin
 
+subsection \<open>Standard ML environment for virtual bootstrap\<close>
+
 setup \<open>Context.theory_map ML_Env.init_bootstrap\<close>
 
 SML_import \<open>
-structure Output_Primitives = Output_Primitives_Virtual;
-structure Thread_Data = Thread_Data_Virtual;
+  structure Output_Primitives = Output_Primitives_Virtual;
+  structure Thread_Data = Thread_Data_Virtual;
 \<close>
+
+
+subsection \<open>Final setup of global ML environment\<close>
+
+ML \<open>Proofterm.proofs := 0\<close>
+
+ML \<open>
+  Context.setmp_generic_context NONE
+    ML \<open>
+      List.app ML_Name_Space.forget_structure ML_Name_Space.hidden_structures;
+      structure PolyML = struct structure IntInf = PolyML.IntInf end;
+    \<close>
+\<close>
+
+ML \<open>@{assert} (not (can ML \<open>open RunCall\<close>))\<close>
+
+
+subsection \<open>Switch to bootstrap environment\<close>
 
 setup \<open>Config.put_global ML_Env.SML_environment true\<close>
 
 end