src/Pure/Pure.thy

   and "also" "moreover" :: prf_decl % "proof"
   and "finally" "ultimately" :: prf_chain % "proof"
   and "back" :: prf_script % "proof"
   and "Isabelle.command" :: control
   and "help" "print_commands" "print_configs"
-    "print_context" "print_theory" "print_syntax" "print_abbrevs"
+    "print_context" "print_theory" "print_syntax" "print_abbrevs" "print_defn_rules"
     "print_theorems" "print_locales" "print_classes" "print_locale"
     "print_interps" "print_dependencies" "print_attributes"
     "print_simpset" "print_rules" "print_trans_rules" "print_methods"
     "print_antiquotations" "thy_deps" "locale_deps" "class_deps" "thm_deps"
     "print_binds" "print_facts" "print_cases" "print_statement" "thm"