--- a/quotient_def.ML	Mon Dec 07 14:09:50 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,140 +0,0 @@
-
-signature QUOTIENT_DEF =
-sig
-  datatype flag = absF | repF
-  val get_fun: flag -> Proof.context -> typ * typ -> term
-  val make_def: binding -> typ -> mixfix -> Attrib.binding -> term ->
-    Proof.context -> (term * thm) * local_theory
-
-  val quotdef: (binding * typ * mixfix) * (Attrib.binding * term) ->
-    local_theory -> (term * thm) * local_theory
-  val quotdef_cmd: (binding * string * mixfix) * (Attrib.binding * string) ->
-    local_theory -> local_theory
-end;
-
-structure Quotient_Def: QUOTIENT_DEF =
-struct
-
-(* wrapper for define *)
-fun define name mx attr rhs lthy =
-let
-  val ((rhs, (_ , thm)), lthy') =
-     Local_Theory.define ((name, mx), (attr, rhs)) lthy
-in
-  ((rhs, thm), lthy')
-end
-
-datatype flag = absF | repF
-
-fun negF absF = repF
-  | negF repF = absF
-
-fun mk_identity ty = Const (@{const_name "id"}, ty --> ty)
-
-fun get_fun_aux lthy s fs =
-  case (maps_lookup (ProofContext.theory_of lthy) s) of
-    SOME info => list_comb (Const (#mapfun info, dummyT), fs)
-  | NONE      => raise 
-        (LIFT_MATCH (space_implode " " ["get_fun_aux: no map for type", quote s, "."]))
-
-fun get_const flag lthy _ qty =
-(* FIXME: check here that _ and qty are related *)
-let 
-  val thy = ProofContext.theory_of lthy
-  val qty_name = Long_Name.base_name (fst (dest_Type qty))
-in
-  case flag of
-    absF => Const (Sign.full_bname thy ("ABS_" ^ qty_name), dummyT)
-  | repF => Const (Sign.full_bname thy ("REP_" ^ qty_name), dummyT)
-end
-
-
-(* calculates the aggregate abs and rep functions for a given type; 
-   repF is for constants' arguments; absF is for constants;
-   function types need to be treated specially, since repF and absF
-   change *)
-
-fun get_fun flag lthy (rty, qty) =
-  if rty = qty then mk_identity qty else
-  case (rty, qty) of 
-    (Type ("fun", [ty1, ty2]), Type ("fun", [ty1', ty2'])) =>
-     let
-       val fs_ty1 = get_fun (negF flag) lthy (ty1, ty1')
-       val fs_ty2 = get_fun flag lthy (ty2, ty2')
-     in  
-       get_fun_aux lthy "fun" [fs_ty1, fs_ty2]
-     end 
-  | (Type (s, []), Type (s', [])) =>
-     if s = s'
-     then mk_identity qty 
-     else get_const flag lthy rty qty
-  | (Type (s, tys), Type (s', tys')) =>
-     if s = s'
-     then get_fun_aux lthy s' (map (get_fun flag lthy) (tys ~~ tys'))
-     else get_const flag lthy rty qty
-  | (TFree x, TFree x') =>
-     if x = x'
-     then mk_identity qty 
-     else raise (LIFT_MATCH "get_fun")
-  | (TVar _, TVar _) => raise (LIFT_MATCH "get_fun")
-  | _ => raise (LIFT_MATCH "get_fun")
-
-fun make_def qconst_bname qty mx attr rhs lthy =
-let
-  val absrep_trm = get_fun absF lthy (fastype_of rhs, qty) $ rhs
-                   |> Syntax.check_term lthy 
-
-  val ((trm, thm), lthy') = define qconst_bname mx attr absrep_trm lthy
-
-  fun qcinfo phi = qconsts_transfer phi {qconst = trm, rconst = rhs, def = thm}
-  val lthy'' = Local_Theory.declaration true
-                 (fn phi => 
-                       let
-                         val qconst_str = fst (Term.dest_Const (Morphism.term phi trm))
-                       in                      
-                         qconsts_update_gen qconst_str (qcinfo phi)
-                       end) lthy'
-in
-  ((trm, thm), lthy'')
-end
-
-(* interface and syntax setup *)
-
-(* the ML-interface takes a 5-tuple consisting of  *)
-(*                                                 *)
-(* - the name of the constant to be lifted         *)
-(* - its type                                      *)
-(* - its mixfix annotation                         *)
-(* - a meta-equation defining the constant,        *)
-(*   and the attributes of for this meta-equality  *)
-
-fun quotdef ((bind, qty, mx), (attr, prop)) lthy =
-let   
-  val (_, prop') = LocalDefs.cert_def lthy prop
-  val (_, rhs) = Primitive_Defs.abs_def prop'
-in  
-  make_def bind qty mx attr rhs lthy 
-end
-
-fun quotdef_cmd ((bind, qtystr, mx), (attr, propstr)) lthy = 
-let
-  val qty  = Syntax.read_typ lthy qtystr
-  val prop = Syntax.read_prop lthy propstr
-in
-  quotdef ((bind, qty, mx), (attr, prop)) lthy |> snd
-end
-
-val quotdef_parser =
-  (OuterParse.binding --
-    (OuterParse.$$$ "::" |-- OuterParse.!!! (OuterParse.typ -- 
-      OuterParse.opt_mixfix' --| OuterParse.where_)) >> OuterParse.triple2) -- 
-       (SpecParse.opt_thm_name ":" -- OuterParse.prop)
-
-val _ = OuterSyntax.local_theory "quotient_def" "lifted definition of constants"
-  OuterKeyword.thy_decl (quotdef_parser >> quotdef_cmd)
-
-end; (* structure *)
-
-open Quotient_Def;
-
-