facts: bind named props (from proof.ML/let_thms);

--- a/src/Pure/Isar/auto_bind.ML	Mon Jun 07 21:22:18 1999 +0200
+++ b/src/Pure/Isar/auto_bind.ML	Mon Jun 07 22:16:56 1999 +0200
@@ -3,34 +3,43 @@
     Author:     Markus Wenzel, TU Muenchen
 
 Automatic term bindings -- logic specific patterns.
-
-TODO:
-  - logic specific theory data instead of hardwired operations (!!);
 *)
 
 signature AUTO_BIND =
 sig
   val goal: term -> (indexname * term) list
-  val facts: term list -> (indexname * term) list
+  val facts: string -> term list -> (indexname * term) list
 end;
 
 structure AutoBind: AUTO_BIND =
 struct
 
-val thesisN = "thesis";
-fun thesis_name sfx = (Syntax.binding (thesisN ^ sfx), 0);
+
+(* goals *)
 
-fun goal prop =
-  let val concl = Logic.strip_imp_concl prop in
-    [(thesis_name "_prop", prop), (thesis_name "_concl", concl)] @
-      (case concl of Const ("Trueprop", _) $ t => [(thesis_name "", t)] | _ => [])
-  end;
+fun statement_binds (name, prop) =
+  let
+    val concl = Logic.strip_imp_concl prop;
+    val env = [(name ^ "_prop", prop), (name ^ "_concl", concl)] @
+      (case concl of Const ("Trueprop", _) $ t => [(name, t)] | _ => []);
+  in map (fn (s, t) => ((Syntax.binding s, 0), t)) env end;
 
-fun facts [] = []
-  | facts props =
-      (case Logic.strip_imp_concl (Library.last_elem props) of
-        Const ("Trueprop", _) $ (_ $ t) => [(Syntax.dddot_indexname, t)]
-      | _ => []);
+fun goal prop = statement_binds ("thesis", prop);
 
 
+(* facts *)
+
+fun dddot_bind prop =
+  (case Logic.strip_imp_concl prop of
+    Const ("Trueprop", _) $ (_ $ t) => [(Syntax.dddot_indexname, t)]
+  | _ => []);
+
+fun facts _ [] = []
+  | facts name [prop] = statement_binds (name, prop) @ dddot_bind prop
+  | facts name props =
+      flat (map statement_binds
+        (map2 (fn (i, t) => (name ^ string_of_int i, t)) (1 upto length props, props))) @
+      dddot_bind (Library.last_elem props);
+      
+
 end;