src/HOL/Tools/ATP/recon_transfer_proof.ML
author quigley
Tue Jun 21 23:44:18 2005 +0200 (2005-06-21)
changeset 16520 7a9cda53bfa2
parent 16478 d0a1f6231e2f
child 16548 aa36ae6b955e
permissions -rw-r--r--
Integrated vampire lemma code.
     1 (*  ID:         $Id$
     2     Author:     Claire Quigley
     3     Copyright   2004  University of Cambridge
     4 *)
     5 
     6 (******************)
     7 (* complete later *)
     8 (******************)
     9 
    10 structure Recon_Transfer =
    11 struct
    12 open Recon_Parse
    13 infixr 8 ++; infixr 7 >>; infixr 6 ||;
    14 
    15 fun not_newline ch = not (ch = "\n");
    16 
    17 
    18 
    19 (*
    20 fun fill_cls_array array n [] = ()
    21 |   fill_cls_array array n (x::xs) = let val _ = Array.update (array, n,x)
    22                                      in
    23                                         fill_cls_array array (n+1) (xs)
    24                                      end;
    25 
    26 
    27 
    28 fun memo_add_clauses ((name:string, (cls:Thm.thm list)), symtable)=
    29                         symtable := Symtab.update((name , cls), !symtable);
    30       	       
    31 
    32 fun memo_add_all ([], symtable) = ()
    33 |   memo_add_all ((x::xs),symtable) = let val _ = memo_add_clauses (x, symtable)
    34                            in
    35                                memo_add_all (xs, symtable)
    36                            end
    37 
    38 fun memo_find_clause (name, (symtable: Thm.thm list Symtab.table ref)) = case Symtab.lookup (!symtable,name) of
    39       	        NONE =>  []
    40                 |SOME cls  => cls ;
    41       	        	
    42 
    43 fun retrieve_clause array symtable clausenum = let
    44                                                   val (name, clnum) = Array.sub(array, clausenum)
    45                                                   val clauses = memo_find_clause (name, symtable)
    46                                                   val clause = get_nth clnum clauses
    47                                                in
    48                                                   (name, clause)
    49                                                end
    50  *)                                             
    51 
    52 (* Versions that include type information *)
    53  
    54 fun string_of_thm thm =
    55   let val _ = set show_sorts
    56       val str = Display.string_of_thm thm
    57       val no_returns =List.filter not_newline (explode str)
    58       val _ = reset show_sorts
    59   in 
    60       implode no_returns
    61   end
    62 
    63 
    64 (* check separate args in the watcher program for separating strings with a * or ; or something *)
    65 
    66 fun clause_strs_to_string [] str = str
    67 |   clause_strs_to_string (x::xs) str = clause_strs_to_string xs (str^x^"%")
    68 
    69 fun thmvars_to_string [] str = str
    70 |   thmvars_to_string (x::xs) str = thmvars_to_string xs (str^x^"%")
    71 
    72 
    73 fun proofstep_to_string Axiom = "Axiom()"
    74 |   proofstep_to_string  (Binary ((a,b), (c,d)))=
    75       "Binary(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
    76 |   proofstep_to_string (Factor (a,b,c)) =
    77       "Factor("^(string_of_int a)^","^(string_of_int b)^","^(string_of_int c)^")"
    78 |   proofstep_to_string  (Para ((a,b), (c,d)))= 
    79       "Para(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
    80 |   proofstep_to_string  (MRR ((a,b), (c,d))) =
    81       "MRR(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
    82 |   proofstep_to_string (Rewrite((a,b),(c,d))) =
    83       "Rewrite(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
    84 
    85 fun list_to_string [] liststr = liststr
    86 |   list_to_string (x::[]) liststr = liststr^(string_of_int x)
    87 |   list_to_string (x::xs) liststr = list_to_string xs (liststr^(string_of_int x)^",")
    88 
    89 
    90 fun proof_to_string (num,(step,clause_strs, thmvars)) = (string_of_int num)^(proofstep_to_string step)^"["^(clause_strs_to_string clause_strs "")^"]["^(thmvars_to_string thmvars "")^"]"
    91  
    92 
    93 fun proofs_to_string [] str = str
    94 |   proofs_to_string (x::xs) str = let val newstr = proof_to_string x 
    95                                    in
    96                                        proofs_to_string xs (str^newstr)
    97                                    end
    98 
    99 
   100 
   101 fun init_proofstep_to_string (num, step, clause_strs) = (string_of_int num)^" "^(proofstep_to_string step)^" "^(clause_strs_to_string clause_strs "")^" "
   102 
   103 fun init_proofsteps_to_string [] str = str
   104 |   init_proofsteps_to_string (x::xs) str = let val newstr = init_proofstep_to_string x 
   105                                    in
   106                                        init_proofsteps_to_string xs (str^newstr)
   107                                    end
   108   
   109 
   110 
   111 (*** get a string representing the Isabelle ordered axioms ***)
   112 
   113 fun origAx_to_string (num,(meta,thmvars)) =
   114     let val clause_strs = ReconOrderClauses.get_meta_lits_bracket meta
   115     in
   116        (string_of_int num)^"OrigAxiom()["^
   117        (clause_strs_to_string clause_strs "")^"]["^
   118        (thmvars_to_string thmvars "")^"]"
   119     end
   120 
   121 
   122 fun  origAxs_to_string [] str = str
   123 |   origAxs_to_string (x::xs) str = let val newstr = origAx_to_string x 
   124                                    in
   125                                        origAxs_to_string xs (str^newstr)
   126                                    end
   127 
   128 
   129 (*** get a string representing the Isabelle ordered axioms not used in the spass proof***)
   130 
   131 fun extraAx_to_string (num, (meta,thmvars)) =
   132    let val clause_strs = ReconOrderClauses.get_meta_lits_bracket meta
   133    in
   134       (string_of_int num)^"ExtraAxiom()["^
   135       (clause_strs_to_string clause_strs "")^"]"^
   136       "["^(thmvars_to_string thmvars "")^"]"
   137    end;
   138 
   139 fun extraAxs_to_string [] str = str
   140 |   extraAxs_to_string (x::xs) str =
   141       let val newstr = extraAx_to_string x 
   142       in
   143 	  extraAxs_to_string xs (str^newstr)
   144       end;
   145 
   146 fun is_axiom ( num:int,Axiom, str) = true
   147 |   is_axiom (num, _,_) = false
   148 
   149 fun get_init_axioms xs = List.filter (is_axiom) ( xs)
   150 
   151 fun get_step_nums [] nums = nums
   152 |   get_step_nums (( num:int,Axiom, str)::xs) nums = get_step_nums xs (nums@[num])
   153 
   154 exception Noassoc;
   155 
   156 fun assoc_snd a [] = raise Noassoc
   157   | assoc_snd a ((x, y)::t) = if a = y then x else assoc_snd a t;
   158 
   159 (* change to be something using check_order  instead of a = y --> returns true if ASSERTION not raised in checkorder, false otherwise *)
   160 
   161 (*fun get_assoc_snds [] xs assocs= assocs
   162 |   get_assoc_snds (x::xs) ys assocs = get_assoc_snds xs ys (assocs@[((assoc_snd x ys))])
   163 *)
   164 (*FIX - should this have vars in it? *)
   165 fun there_out_of_order xs ys = (ReconOrderClauses.checkorder xs ys [] ([],[],[]); true) 
   166                                handle _ => false
   167 
   168 fun assoc_out_of_order a [] = raise Noassoc
   169 |   assoc_out_of_order a ((b,c)::t) = if there_out_of_order a c then b else assoc_out_of_order a t;
   170 
   171 fun get_assoc_snds [] xs assocs= assocs
   172 |   get_assoc_snds (x::xs) ys assocs = get_assoc_snds xs ys (assocs@[((assoc_out_of_order x ys))])
   173 
   174 fun add_if_not_inlist [] xs newlist = newlist
   175 |   add_if_not_inlist (y::ys) xs newlist = if (not (y mem xs)) then 
   176                                       add_if_not_inlist ys xs (y::newlist)
   177                                         else add_if_not_inlist ys xs (newlist)
   178 
   179 (*Flattens a list of list of strings to one string*)
   180 fun onestr ls = String.concat (map String.concat ls);
   181 
   182 fun thmstrings [] str = str
   183 |   thmstrings (x::xs) str = thmstrings xs (str^(string_of_thm x))
   184 
   185 fun is_clasimp_ax clasimp_num n = n <=clasimp_num 
   186 
   187 
   188 
   189 fun retrieve_axioms clause_arr  [] = []
   190 |   retrieve_axioms clause_arr  (x::xs) =  [Array.sub(clause_arr, x)]@
   191  						     (retrieve_axioms clause_arr  xs)
   192 
   193 fun subone x = x - 1
   194 
   195 fun numstr [] = ""
   196 |   numstr (x::xs) = (string_of_int x)^"%"^(numstr xs)
   197 
   198 
   199 (* retrieve the axioms that were obtained from the clasimpset *)
   200 
   201 fun get_clasimp_cls clause_arr clasimp_num step_nums = 
   202     let val realnums = map subone step_nums	
   203 	val clasimp_nums = List.filter (is_clasimp_ax (clasimp_num - 1)) realnums
   204 (*	val axnums = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "axnums")))     
   205 	val _ = TextIO.output(axnums,(numstr clasimp_nums))
   206 	val _ = TextIO.closeOut(axnums)*)
   207     in
   208 	retrieve_axioms clause_arr  clasimp_nums
   209     end
   210 
   211 
   212 
   213 (*****************************************************)
   214 (* get names of clasimp axioms used                  *)
   215 (*****************************************************)
   216 
   217  fun get_axiom_names proof_steps thms (clause_arr:(ResClause.clause * thm) Array.array) num_of_clauses  =
   218    let 
   219      (* not sure why this is necessary again, but seems to be *)
   220       val _ = (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
   221       val axioms = get_init_axioms proof_steps
   222       val step_nums = get_step_nums axioms []
   223   
   224      (***********************************************)
   225      (* here need to add the clauses from clause_arr*)
   226      (***********************************************)
   227   
   228       val (clasimp_names_cls) = get_clasimp_cls clause_arr num_of_clauses step_nums 
   229       val clasimp_names = map (#1 o ResClause.clause_info o #1) clasimp_names_cls
   230   
   231       val _ = File.write (File.tmp_path (Path.basic "clasimp_names"))                                                               
   232                          (concat clasimp_names)
   233       val _ = (print_mode := (["xsymbols", "symbols"] @ ! print_mode))
   234    in
   235       clasimp_names
   236    end
   237     
   238  fun get_axiom_names_vamp proofstr thms (clause_arr:(ResClause.clause * thm) Array.array) num_of_clauses  =
   239    let 
   240      (* not sure why this is necessary again, but seems to be *)
   241       val _ = (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
   242       val step_nums =get_linenums proofstr
   243   
   244      (***********************************************)
   245      (* here need to add the clauses from clause_arr*)
   246      (***********************************************)
   247   
   248       val (clasimp_names_cls) = get_clasimp_cls clause_arr num_of_clauses step_nums 
   249       val clasimp_names = map (#1 o ResClause.clause_info o #1) clasimp_names_cls
   250   
   251       val _ = File.write (File.tmp_path (Path.basic "clasimp_names"))                                                               
   252                          (concat clasimp_names)
   253       val _ = (print_mode := (["xsymbols", "symbols"] @ ! print_mode))
   254    in
   255       clasimp_names
   256    end
   257     
   258 
   259 
   260 
   261 (***********************************************)
   262 (* get axioms for reconstruction               *)
   263 (***********************************************)
   264 fun numclstr (vars, []) str = str
   265 |   numclstr ( vars, ((num, thm)::rest)) str =
   266       let val newstr = str^(string_of_int num)^" "^(string_of_thm thm)^" "
   267       in
   268         numclstr  (vars,rest) newstr
   269       end
   270 
   271 fun addvars c (a,b)  = (a,b,c)
   272 
   273  fun get_axioms_used proof_steps thms clause_arr num_of_clauses  =
   274      let 
   275 	 (*val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_ax_thmstr")))                                                                      
   276 	 val _ = TextIO.output (outfile, thmstring)
   277 	 
   278 	 val _ =  TextIO.closeOut outfile*)
   279 	(* not sure why this is necessary again, but seems to be *)
   280 
   281 	val _=  (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
   282 	val axioms = get_init_axioms proof_steps
   283 	val step_nums = get_step_nums axioms []
   284 
   285        (***********************************************)
   286        (* here need to add the clauses from clause_arr*)
   287        (***********************************************)
   288 
   289        (* val clasimp_names_cls = get_clasimp_cls clause_arr   num_of_clauses step_nums   
   290 	val clasimp_names = map #1 clasimp_names_cls
   291 	val clasimp_cls = map #2 clasimp_names_cls
   292 	val  outfile = TextIO.openAppend(File.platform_path(File.tmp_path (Path.basic "clasimp_names")))                                                            val clasimp_namestr = concat clasimp_names                            
   293 	 val _ = TextIO.output (outfile,clasimp_namestr)
   294 	 
   295 	 val _ =  TextIO.closeOut outfile
   296 *)
   297 
   298 	val clauses =(*(clasimp_cls)@*)( make_clauses thms)
   299 	
   300 	val vars = map thm_vars clauses
   301        
   302 	val distvars = distinct (fold append vars [])
   303 	val clause_terms = map prop_of clauses  
   304 	val clause_frees = List.concat (map term_frees clause_terms)
   305 
   306 	val frees = map lit_string_with_nums clause_frees;
   307 
   308 	val distfrees = distinct frees
   309 
   310 	val metas = map Meson.make_meta_clause clauses
   311 	val ax_strs = map #3 axioms
   312 
   313 	(* literals of -all- axioms, not just those used by spass *)
   314 	val meta_strs = map ReconOrderClauses.get_meta_lits metas
   315        
   316 	val metas_and_strs = ListPair.zip (metas,meta_strs)
   317 	 val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_clauses")));                                                                       
   318 	 val _ = TextIO.output (outfile, onestr ax_strs)
   319 	 
   320 	 val _ =  TextIO.closeOut outfile
   321 	 val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_metastrs")));                                                                       
   322 	 val _ = TextIO.output (outfile, onestr meta_strs)
   323 	 val _ =  TextIO.closeOut outfile
   324 
   325 	(* get list of axioms as thms with their variables *)
   326 
   327 	val ax_metas = get_assoc_snds ax_strs metas_and_strs []
   328 	val ax_vars = map thm_vars ax_metas
   329 	val ax_with_vars = ListPair.zip (ax_metas,ax_vars)
   330 
   331 	(* get list of extra axioms as thms with their variables *)
   332 	val extra_metas = add_if_not_inlist metas ax_metas []
   333 	val extra_vars = map thm_vars extra_metas
   334 	val extra_with_vars = if (not (extra_metas = []) ) 
   335 			      then
   336 				     ListPair.zip (extra_metas,extra_vars)
   337 			      else
   338 				     []
   339 
   340        (* val _=  (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
   341        val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_metas")))
   342 
   343        val _ = TextIO.output (outfile, ((thmstrings ax_metas "")))
   344        val _ =  TextIO.closeOut outfile
   345       val foo_metas =  File.platform_path(File.tmp_path (Path.basic "foo_metas"))
   346       val foo_metas2 =   File.platform_path(File.tmp_path (Path.basic "foo_metas2"))
   347 	val execperl = Unix.execute("/usr/bin/perl", ["remchars.pl", "  <", foo_metas, "  >", foo_metas2])
   348      val infile = TextIO.openIn(File.platform_path(File.tmp_path (Path.basic "foo_metas2")))
   349     val ax_metas_str = TextIO.inputLine (infile)
   350     val _ = TextIO.closeIn infile
   351        val _= (print_mode := (["xsymbols", "symbols"] @ ! print_mode))*)
   352        
   353      in
   354 	(distfrees,distvars, extra_with_vars,ax_with_vars, (*clasimp_names*)(ListPair.zip (step_nums,ax_metas)))
   355      end
   356     
   357 
   358                                         
   359 
   360 (*********************************************************************)
   361 (* Pass in spass string of proof and string version of isabelle goal *)
   362 (* Get out reconstruction steps as a string to be sent to Isabelle   *)
   363 (*********************************************************************)
   364 
   365 
   366 fun rules_to_string [] str = str
   367 |   rules_to_string [x] str = str^x
   368 |   rules_to_string (x::xs) str = rules_to_string xs (str^x^"   ")
   369                                   
   370 
   371 val dummy_tac = PRIMITIVE(fn thm => thm );
   372 
   373 
   374 (*val  proofstr = "1242[0:Inp] ||  -> equal(const_List_Orev(tconst_fun(tconst_List_Olist(U),tconst_List_Olist(U)),const_List_Olist_ONil),const_List_Olist_ONil)**.\
   375 \1279[0:Inp] ||  -> equal(const_Nat_Osize(tconst_fun(tconst_List_Olist(U),tconst_nat),const_List_Olist_ONil),const_0)**.\
   376 \1430[0:Inp] || equal(const_Nat_Osize(tconst_fun(tconst_List_Olist(typ__Ha),tconst_nat),const_List_Orev(tconst_fun(tconst_List_Olist(typ__Ha),tconst_List_Olist(typ__Ha)),const_List_Olist_ONil)),const_Nat_Osize(tconst_fun(tconst_List_Olist(typ__Ha),tconst_nat),const_List_Olist_ONil))** -> .\
   377 \1453[0:Rew:1279.0,1430.0,1242.0,1430.0,1279.0,1430.0] || equal(const_0,const_0)* -> .\
   378 \1454[0:Obv:1453.0] ||  -> .";*)
   379 
   380 fun remove_linebreaks str = let val strlist = explode str
   381 	                        val nonewlines = filter (not_equal "\n") strlist
   382 	                    in
   383 				implode nonewlines
   384 			    end
   385 
   386 
   387 fun subst_for a b [] = ""
   388 |   subst_for a b (x::xs) = if (x = a)
   389 				   then 
   390 					(b^(subst_for a b  xs))
   391 				   else
   392 					x^(subst_for a b xs)
   393 
   394 
   395 fun remove_linebreaks str = let val strlist = explode str
   396 			    in
   397 				subst_for "\n" "\t" strlist
   398 			    end
   399 
   400 fun restore_linebreaks str = let val strlist = explode str
   401 			     in
   402 				subst_for "\t" "\n" strlist
   403 			     end
   404 
   405 
   406 
   407 fun spassString_to_lemmaString proofstr thmstring goalstring toParent ppid thms clause_arr  num_of_clauses  = 
   408            let 	val  outfile = TextIO.openAppend( File.platform_path(File.tmp_path (Path.basic"thmstringfile")));          
   409 		val _ = TextIO.output (outfile, ("thmstring is: "^thmstring^"\n proofstr is: "^proofstr^"\n goalstr is: "^goalstring^" \n  num of clauses is: "^(string_of_int num_of_clauses)))
   410 
   411               	val _ =  TextIO.closeOut outfile
   412 
   413                  (***********************************)
   414                  (* parse spass proof into datatype *)
   415                  (***********************************)
   416          
   417                   val tokens = #1(lex proofstr)
   418                   val proof_steps1 = parse tokens
   419                   val proof_steps = just_change_space proof_steps1
   420                   val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_parse")));        val _ = TextIO.output (outfile, ("Did parsing on "^proofstr))
   421                                                   val _ =  TextIO.closeOut outfile
   422                                                 
   423                                                   val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_thmstring_at_parse")));                                        val _ = TextIO.output (outfile, ("Parsing for thmstring: "^thmstring))
   424                                                   val _ =  TextIO.closeOut outfile
   425                                               (************************************)
   426                                               (* recreate original subgoal as thm *)
   427                                               (************************************)
   428                                                 
   429                                                   (* get axioms as correctly numbered clauses w.r.t. the Spass proof *)
   430                                                   (* need to get prems_of thm, then get right one of the prems, relating to whichever*)
   431                                                   (* subgoal this is, and turn it into meta_clauses *)
   432                                                   (* should prob add array and table here, so that we can get axioms*)
   433                                                   (* produced from the clasimpset rather than the problem *)
   434 
   435                                                   val (axiom_names) = get_axiom_names proof_steps  thms clause_arr  num_of_clauses
   436                                                   val ax_str = "Rules from clasimpset used in proof found by SPASS: "^(rules_to_string axiom_names "")
   437                                                   val  outfile = TextIO.openAppend(File.platform_path(File.tmp_path (Path.basic "reconstrfile")));                                                     val _ = TextIO.output (outfile, ("reconstring is: "^ax_str^"  "^goalstring))
   438                                                   val _ =  TextIO.closeOut outfile
   439                                                    
   440                                               in 
   441                                                    TextIO.output (toParent, ax_str^"\n");
   442                                                    TextIO.flushOut toParent;
   443                                         	   TextIO.output (toParent, "goalstring: "^goalstring^"\n");
   444                                          	   TextIO.flushOut toParent;
   445                                          	   TextIO.output (toParent, "thmstring: "^thmstring^"\n");
   446                                          	   TextIO.flushOut toParent;
   447                                           
   448                                          	   Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   449                                          	  (* Attempt to prevent several signals from turning up simultaneously *)
   450                                          	   Posix.Process.sleep(Time.fromSeconds 1) ; dummy_tac
   451                                               end
   452                                               handle _ => (let val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_handler")));
   453 
   454                                                   val _ = TextIO.output (outfile, ("In exception handler"));
   455                                                   val _ =  TextIO.closeOut outfile
   456                                               in 
   457                                                  TextIO.output (toParent,"Proof found but parsing failed for resolution proof: "^(remove_linebreaks proofstr)^"\n" );
   458                                                   TextIO.flushOut toParent;
   459 						   TextIO.output (toParent, (remove_linebreaks thmstring)^"\n");
   460                                          	   TextIO.flushOut toParent;
   461                                          	   TextIO.output (toParent, ( (remove_linebreaks goalstring)^"\n"));
   462                                          	   TextIO.flushOut toParent;
   463             					  Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   464                                          	  (* Attempt to prevent several signals from turning up simultaneously *)
   465                                          	  Posix.Process.sleep(Time.fromSeconds 1) ;dummy_tac
   466                                               end)
   467 
   468 
   469 fun vampString_to_lemmaString proofstr thmstring goalstring toParent ppid thms clause_arr  num_of_clauses  = 
   470            let val  outfile = TextIO.openAppend(File.platform_path(File.tmp_path (Path.basic "thmstringfile")));     						       val _ = TextIO.output (outfile, (" thmstring is: "^thmstring^"proofstr is: "^proofstr^"goalstr is: "^goalstring^" num of clauses is: "^(string_of_int num_of_clauses)))
   471                                                val _ =  TextIO.closeOut outfile
   472 
   473                                               (***********************************)
   474                                               (* get vampire axiom names         *)
   475                                               (***********************************)
   476          
   477                                                val (axiom_names) = get_axiom_names_vamp proofstr  thms clause_arr  num_of_clauses
   478                                                val ax_str = "Rules from clasimpset used in proof found by Vampire: "^(rules_to_string axiom_names "")
   479                                                val  outfile = TextIO.openAppend(File.platform_path(File.tmp_path (Path.basic "reconstrfile")));                                                    val _ = TextIO.output (outfile, ("reconstring is: "^ax_str^"  "^goalstring))
   480                                                val _ =  TextIO.closeOut outfile
   481                                                    
   482                                               in 
   483                                                    TextIO.output (toParent, ax_str^"\n");
   484                                                    TextIO.flushOut toParent;
   485                                         	   TextIO.output (toParent, "goalstring: "^goalstring^"\n");
   486                                          	   TextIO.flushOut toParent;
   487                                          	   TextIO.output (toParent, "thmstring: "^thmstring^"\n");
   488                                          	   TextIO.flushOut toParent;
   489                                           
   490                                          	   Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   491                                          	  (* Attempt to prevent several signals from turning up simultaneously *)
   492                                          	   Posix.Process.sleep(Time.fromSeconds 1) ; dummy_tac
   493                                               end
   494                                               handle _ => (let val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_handler")));
   495 
   496                                                   val _ = TextIO.output (outfile, ("In exception handler"));
   497                                                   val _ =  TextIO.closeOut outfile
   498                                               in 
   499                                                   TextIO.output (toParent,"Proof found by Vampire but translation failed for resolution proof: "^(remove_linebreaks proofstr) );
   500                                                   TextIO.flushOut toParent;
   501 						   TextIO.output (toParent, thmstring^"\n");
   502                                          	   TextIO.flushOut toParent;
   503                                          	   TextIO.output (toParent, goalstring^"\n");
   504                                          	   TextIO.flushOut toParent;
   505             					  Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   506                                          	  (* Attempt to prevent several signals from turning up simultaneously *)
   507                                          	  Posix.Process.sleep(Time.fromSeconds 1) ;dummy_tac
   508                                               end)
   509 
   510 
   511 
   512 
   513 (* val proofstr = "1582[0:Inp] || -> v_P*.\
   514                  \1583[0:Inp] || v_P* -> .\
   515 		 \1584[0:MRR:1583.0,1582.0] || -> ."; *)
   516 
   517 fun spassString_to_reconString proofstr thmstring goalstring toParent ppid thms clause_arr  num_of_clauses  = 
   518       let val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "thmstringfile")));                                        
   519 	  (* val sign = sign_of_thm thm
   520 	 val prems = prems_of thm
   521 	 val prems_string =  concat_with_and (map (Sign.string_of_term sign) prems) "" 
   522 	  val _ = warning ("thmstring is: "^thmstring);(*("thm in spassStrtoRec: "^(concat_with_and (map string_of_thm thms) "")^*)*)
   523 	  val _ = TextIO.output (outfile, (" thmstring is: "^thmstring^"proofstr is: "^proofstr))
   524 (*val _ = TextIO.output (outfile, (("in spassStrto Reconstr")));*)
   525 	  val _ =  TextIO.closeOut outfile
   526 
   527 	  val tokens = #1(lex proofstr)
   528 
   529 	    
   530 
   531       (***********************************)
   532       (* parse spass proof into datatype *)
   533       (***********************************)
   534 
   535 	  val proof_steps1 = parse tokens
   536 	  val proof_steps = just_change_space proof_steps1
   537 
   538 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_parse")));                                                                                          val _ = TextIO.output (outfile, ("Did parsing on "^proofstr))
   539 	  val _ =  TextIO.closeOut outfile
   540 	
   541 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_thmstring_at_parse")));                                                                             val _ = TextIO.output (outfile, ("Parsing for thmstring: "^thmstring))
   542 	  val _ =  TextIO.closeOut outfile
   543       (************************************)
   544       (* recreate original subgoal as thm *)
   545       (************************************)
   546 	
   547 	  (* get axioms as correctly numbered clauses w.r.t. the Spass proof *)
   548 	  (* need to get prems_of thm, then get right one of the prems, relating to whichever*)
   549 	  (* subgoal this is, and turn it into meta_clauses *)
   550 	  (* should prob add array and table here, so that we can get axioms*)
   551 	  (* produced from the clasimpset rather than the problem *)
   552 	  val (frees,vars,extra_with_vars ,ax_with_vars,numcls) = get_axioms_used proof_steps  thms clause_arr  num_of_clauses
   553 	  
   554 	  (*val numcls_string = numclstr ( vars, numcls) ""*)
   555 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_axiom")));                                                                            val _ = TextIO.output (outfile,"got axioms")
   556 	  val _ =  TextIO.closeOut outfile
   557 	    
   558       (************************************)
   559       (* translate proof                  *)
   560       (************************************)
   561 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_steps")));                                                          val _ = TextIO.output (outfile, ("about to translate proof, steps: "^(init_proofsteps_to_string proof_steps "")))
   562 	  val _ =  TextIO.closeOut outfile
   563 	  val (newthm,proof) = translate_proof numcls  proof_steps vars
   564 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_steps2")));                                                                         val _ = TextIO.output (outfile, ("translated proof, steps: "^(init_proofsteps_to_string proof_steps "")))
   565 	  val _ =  TextIO.closeOut outfile
   566       (***************************************************)
   567       (* transfer necessary steps as strings to Isabelle *)
   568       (***************************************************)
   569 	  (* turn the proof into a string *)
   570 	  val reconProofStr = proofs_to_string proof ""
   571 	  (* do the bit for the Isabelle ordered axioms at the top *)
   572 	  val ax_nums = map #1 numcls
   573 	  val ax_strs = map ReconOrderClauses.get_meta_lits_bracket (map #2 numcls)
   574 	  val numcls_strs = ListPair.zip (ax_nums,ax_strs)
   575 	  val num_cls_vars =  map (addvars vars) numcls_strs;
   576 	  val reconIsaAxStr = origAxs_to_string (ListPair.zip (ax_nums,ax_with_vars)) ""
   577 	  
   578 	  val extra_nums = if (not (extra_with_vars = [])) then (1 upto (length extra_with_vars)) else []
   579 	  val reconExtraAxStr = extraAxs_to_string ( ListPair.zip (extra_nums,extra_with_vars)) ""
   580 	  val frees_str = "["^(thmvars_to_string frees "")^"]"
   581 	  val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "reconstringfile")));
   582 
   583 	  val _ = TextIO.output (outfile, (frees_str^reconExtraAxStr^reconIsaAxStr^reconProofStr))
   584 	  val _ =  TextIO.closeOut outfile
   585 	  val reconstr = (frees_str^reconExtraAxStr^reconIsaAxStr^reconProofStr)
   586       in 
   587 	   TextIO.output (toParent, reconstr^"\n");
   588 	   TextIO.flushOut toParent;
   589 	   TextIO.output (toParent, thmstring^"\n");
   590 	   TextIO.flushOut toParent;
   591 	   TextIO.output (toParent, goalstring^"\n");
   592 	   TextIO.flushOut toParent;
   593   
   594 	   Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   595 	  (* Attempt to prevent several signals from turning up simultaneously *)
   596 	   Posix.Process.sleep(Time.fromSeconds 1) ; dummy_tac
   597       end
   598       handle _ => (let val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "foo_handler")));
   599 
   600 	  val _ = TextIO.output (outfile, ("In exception handler"));
   601 	  val _ =  TextIO.closeOut outfile
   602       in 
   603 	   TextIO.output (toParent,"Proof found but translation failed for resolution proof:"^(remove_linebreaks proofstr) ^"\n");
   604 	  TextIO.flushOut toParent;
   605 	TextIO.output (toParent, thmstring^"\n");
   606 	   TextIO.flushOut toParent;
   607 	   TextIO.output (toParent, goalstring^"\n");
   608 	   TextIO.flushOut toParent;
   609 	  Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
   610 	  (* Attempt to prevent several signals from turning up simultaneously *)
   611 	  Posix.Process.sleep(Time.fromSeconds 1) ;dummy_tac
   612       end)
   613 
   614 
   615 
   616 
   617 
   618 (**********************************************************************************)
   619 (* At other end, want to turn back into datatype so can apply reconstruct_proof.  *)
   620 (* This will be done by the signal handler                                        *)
   621 (**********************************************************************************)
   622 
   623 (* Parse in the string version of the proof steps for reconstruction *)
   624 (* Isar format: cl1 [BINARY 0 cl2 0];cl1 [PARAMOD 0 cl2 0]; cl1 [DEMOD 0 cl2];cl1 [FACTOR 1 2];*)
   625 
   626 
   627  val term_numstep =
   628         (number ++ (a (Other ",")) ++ number) >> (fn (a, (_, c)) => (a, c))
   629 
   630 val extraaxiomstep = (a (Word "ExtraAxiom"))++ (a (Other "(")) ++(a (Other ")"))
   631             >> (fn (_) => ExtraAxiom)
   632 
   633 
   634 
   635 val origaxiomstep = (a (Word "OrigAxiom"))++ (a (Other "(")) ++(a (Other ")"))
   636             >> (fn (_) => OrigAxiom)
   637 
   638 
   639  val axiomstep = (a (Word "Axiom"))++ (a (Other "(")) ++(a (Other ")"))
   640             >> (fn (_) => Axiom)
   641      
   642 
   643 
   644       
   645  val binarystep = (a (Word "Binary")) ++ (a (Other "(")) ++ (a (Other "(")) 
   646                    ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
   647                    ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
   648             >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Binary (c,e))
   649       
   650 
   651  val parastep = (a (Word "Para")) ++ (a (Other "(")) ++ (a (Other "(")) 
   652                    ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
   653                    ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
   654             >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Para(c, e))
   655       
   656  val mrrstep = (a (Word "MRR")) ++ (a (Other "(")) ++ (a (Other "(")) 
   657                    ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
   658                    ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
   659             >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => MRR(c, e))
   660       
   661 
   662  val factorstep = (a (Word "Factor")) ++ (a (Other "("))
   663                     ++ number ++ (a (Other ","))
   664                        ++ number ++ (a (Other ","))
   665                        ++ number ++  (a (Other ")"))
   666                    
   667             >> (fn (_, (_, (c, (_, (e,(_,(f,_))))))) =>  Factor (c,e,f))
   668 
   669 
   670 val rewritestep = (a (Word "Rewrite"))  ++ (a (Other "(")) ++ (a (Other "(")) 
   671                    ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
   672                    ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
   673             >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Rewrite (c,e))
   674 
   675 val obviousstep = (a (Word "Obvious")) ++ (a (Other "(")) 
   676                    ++ term_numstep  ++ (a (Other ")")) 
   677             >> (fn (_, (_, (c,_))) => Obvious (c))
   678 
   679  val methodstep = extraaxiomstep || origaxiomstep || axiomstep ||binarystep || factorstep|| parastep || mrrstep || rewritestep || obviousstep
   680 
   681 
   682  val number_list_step =
   683         ( number ++ many ((a (Other ",") ++ number)>> #2))
   684         >> (fn (a,b) => (a::b))
   685         
   686  val numberlist_step = a (Other "[")  ++ a (Other "]")
   687                         >>(fn (_,_) => ([]:int list))
   688                        || a (Other "[") ++ number_list_step ++ a (Other "]")
   689                         >>(fn (_,(a,_)) => a)
   690                     
   691 
   692 
   693 (** change this to allow P (x U) *)
   694  fun arglist_step input = ( word ++ many  word >> (fn (a, b) => (a^" "^(implode_with_space b)))
   695                            ||word >> (fn (a) => (a)))input
   696                 
   697 
   698 fun literal_step input = (word ++ a (Other "(") ++ arglist_step ++  a (Other ")")
   699                                           >>(fn (a, (b, (c,d))) => (a^" ("^(c)^")"))
   700                         || arglist_step >> (fn (a) => (a)))input
   701                            
   702 
   703 
   704 (* fun term_step input = (a (Other "~") ++ arglist_step ++ a (Other "%")>> (fn (a,(b,c)) => ("~ "^b))
   705                      ||  arglist_step ++ a (Other "%")>> (fn (a,b) => a ))input
   706 *)
   707 
   708 
   709  fun term_step input = (a (Other "~") ++ literal_step ++ a (Other "%")>> (fn (a,(b,c)) => ("~ "^b))
   710                      ||  literal_step ++ a (Other "%")>> (fn (a,b) => a ))input
   711 
   712 
   713          
   714 
   715  val term_list_step =
   716         (  term_step ++ many ( term_step))
   717         >> (fn (a,b) => (a::b))
   718         
   719  
   720 val term_lists_step = a (Other "[")  ++ a (Other "]")
   721                         >>(fn (_,_) => ([]:string list))
   722                        || a (Other "[") ++ term_list_step ++ a (Other "]")
   723                         >>(fn (_,(a,_)) => a)
   724                      
   725 
   726 
   727 
   728 fun anytoken_step input  = (word>> (fn (a) => a)  ) input
   729                        handle NOPARSE_WORD => (number>> (fn (a) => string_of_int a)  ) input
   730                       handle NOPARSE_NUMBER => (other_char >> (fn(a) => a)) input
   731 
   732 
   733 
   734 fun goalstring_step input= (anytoken_step ++ many (anytoken_step )
   735                   >> (fn (a,b) =>  (a^" "^(implode b)))) input
   736 
   737 
   738 
   739  val linestep = number ++ methodstep ++ term_lists_step ++ term_lists_step
   740                 >> (fn (a, (b, (c,d))) => (a,(b,c,d)))
   741     
   742  val lines_step = many linestep
   743 
   744  val alllines_step = (term_lists_step ++ lines_step ) ++ finished >> #1
   745     
   746  val parse_step = #1 o alllines_step
   747 
   748 
   749  (*
   750 val reconstr ="[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]%(EX x::'a::type. ALL y::'a::type. (P::'a::type => bool) x = P y) -->(EX x::'a::type. P x) = (ALL y::'a::type. P y)"
   751 *)
   752 
   753 (************************************************************)
   754 (* Construct an Isar style proof from a list of proof steps *)
   755 (************************************************************)
   756 (* want to assume all axioms, then do haves for the other clauses*)
   757 (* then show for the last step *)
   758 
   759 (* replace ~ by not here *)
   760 fun change_nots [] = []
   761 |   change_nots (x::xs) = if x = "~" 
   762                           then 
   763                              ["\\", "<", "n", "o", "t", ">"]@(change_nots xs)
   764                           else (x::(change_nots xs))
   765 
   766 (*
   767 fun clstrs_to_string [] str = str
   768 |   clstrs_to_string (x::[]) str = str^x
   769 |   clstrs_to_string (x::xs) str = clstrs_to_string xs (str^(x^"; "))
   770 *)
   771 fun clstrs_to_string [] str = implode (change_nots (explode str))
   772 |   clstrs_to_string (x::[]) str = implode (change_nots (explode (str^x)))
   773 |   clstrs_to_string (x::xs) str = implode (change_nots (explode (clstrs_to_string xs (str^(x^"; ")))))
   774 
   775 
   776 
   777 fun thmvars_to_quantstring [] str = str
   778 |   thmvars_to_quantstring (x::[]) str =str^x^". "
   779 |   thmvars_to_quantstring (x::xs) str = thmvars_to_quantstring xs (str^(x^" "))
   780 
   781 
   782 fun clause_strs_to_isar clstrs [] =  "\"\\<lbrakk>"^(clstrs_to_string clstrs "")^"\\<rbrakk> \\<Longrightarrow> False\""
   783 |   clause_strs_to_isar clstrs thmvars = "\"\\<And>"^(thmvars_to_quantstring thmvars "")^"\\<lbrakk>"^(clstrs_to_string clstrs "")^"\\<rbrakk> \\<Longrightarrow> False\""
   784 
   785 fun frees_to_string [] str = implode (change_nots (explode str))
   786 |   frees_to_string (x::[]) str = implode (change_nots (explode (str^x)))
   787 |   frees_to_string  (x::xs) str = implode (change_nots (explode (frees_to_string xs (str^(x^" ")))))
   788 
   789 fun frees_to_isar_str [] =  ""
   790 |   frees_to_isar_str  clstrs = (frees_to_string clstrs "")
   791 
   792 
   793 (***********************************************************************)
   794 (* functions for producing assumptions for the Isabelle ordered axioms *)
   795 (***********************************************************************)
   796 (*val str = "[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]";       
   797 num, rule, clausestrs, vars*)
   798 
   799 
   800 (* assume the extra clauses - not used in Spass proof *)
   801 
   802 fun is_extraaxiom_step ( num:int,(ExtraAxiom, str, tstr)) = true
   803 |   is_extraaxiom_step (num, _) = false
   804 
   805 fun get_extraaxioms xs = List.filter (is_extraaxiom_step) ( xs)
   806 
   807 fun assume_isar_extraaxiom [] str  = str
   808 |   assume_isar_extraaxiom ((numb,(step, clstr, thmvars))::xs) str  = assume_isar_extraaxiom xs (str^"and cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstr thmvars)^"\n " )
   809 
   810 
   811 
   812 fun assume_isar_extraaxioms  [] = ""
   813 |assume_isar_extraaxioms ((numb,(step, clstrs, thmstrs))::xs) = let val str = "assume cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstrs thmstrs)^"\n" 
   814                                          in
   815                                              assume_isar_extraaxiom xs str
   816                                          end
   817 
   818 (* assume the Isabelle ordered clauses *)
   819 
   820 fun is_origaxiom_step ( num:int,(OrigAxiom, str, tstr)) = true
   821 |   is_origaxiom_step (num, _) = false
   822 
   823 fun get_origaxioms xs = List.filter (is_origaxiom_step) ( xs)
   824 
   825 fun assume_isar_origaxiom [] str  = str
   826 |   assume_isar_origaxiom ((numb,(step, clstr, thmvars))::xs) str  = assume_isar_origaxiom xs (str^"and cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstr thmvars)^"\n " )
   827 
   828 
   829 
   830 fun assume_isar_origaxioms ((numb,(step, clstrs, thmstrs))::xs) = let val str = "assume cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstrs thmstrs)^"\n" 
   831                                          in
   832                                              assume_isar_origaxiom xs str
   833                                          end
   834 
   835 
   836 
   837 fun is_axiom_step ( num:int,(Axiom, str, tstr)) = true
   838 |   is_axiom_step (num, _) = false
   839 
   840 fun get_axioms xs = List.filter  (is_axiom_step) ( xs)
   841 
   842 fun have_isar_axiomline (numb,(step, clstrs, thmstrs))="have cl"^(string_of_int numb)^": "^(clause_strs_to_isar clstrs thmstrs)^"\n"
   843 
   844 fun  by_isar_axiomline (numb,(step, clstrs, thmstrs))="by (rule cl"^ (string_of_int numb)^"') \n"
   845 
   846 
   847 fun isar_axiomline (numb, (step, clstrs, thmstrs))  = (have_isar_axiomline (numb,(step,clstrs, thmstrs )))^( by_isar_axiomline(numb,(step,clstrs, thmstrs )) )
   848 
   849 
   850 fun isar_axiomlines [] str = str
   851 |   isar_axiomlines (x::xs) str = isar_axiomlines xs (str^(isar_axiomline x))
   852 
   853 
   854 fun have_isar_line (numb,(step, clstrs, thmstrs))="have cl"^(string_of_int numb)^": "^(clause_strs_to_isar clstrs thmstrs)^"\n"
   855 (*FIX: ask Larry to add and mrr attribute *)
   856 
   857 fun by_isar_line ((Binary ((a,b), (c,d)))) = 
   858     "by(rule cl"^
   859 		(string_of_int a)^" [binary "^(string_of_int b)^" cl"^
   860 		(string_of_int c)^" "^(string_of_int d)^"])\n"
   861 |by_isar_line ((MRR ((a,b), (c,d)))) = 
   862     "by(rule cl"^
   863 		(string_of_int a)^" [binary "^(string_of_int b)^" cl"^
   864 		(string_of_int c)^" "^(string_of_int d)^"])\n"
   865 |   by_isar_line ( (Para ((a,b), (c,d)))) =
   866     "by (rule cl"^
   867 		(string_of_int a)^" [paramod "^(string_of_int b)^" cl"^
   868 		(string_of_int c)^" "^(string_of_int d)^"])\n"
   869 |   by_isar_line ((Factor ((a,b,c)))) = 
   870     "by (rule cl"^(string_of_int a)^" [factor "^(string_of_int b)^" "^
   871 		(string_of_int c)^" ])\n"
   872 |   by_isar_line ( (Rewrite ((a,b),(c,d)))) =
   873     "by (rule cl"^(string_of_int a)^" [demod "^(string_of_int b)^" "^
   874 		(string_of_int c)^" "^(string_of_int d)^" ])\n"
   875 |   by_isar_line ( (Obvious ((a,b)))) =
   876     "by (rule cl"^(string_of_int a)^" [obvious "^(string_of_int b)^" ])\n"
   877 
   878 fun isar_line (numb, (step, clstrs, thmstrs))  = (have_isar_line (numb,(step,clstrs, thmstrs )))^( by_isar_line step)
   879 
   880 
   881 fun isar_lines [] str = str
   882 |   isar_lines (x::xs) str = isar_lines xs (str^(isar_line x))
   883 
   884 fun last_isar_line (numb,( step, clstrs,thmstrs)) = "show \"False\"\n"^(by_isar_line step)
   885 
   886 
   887 fun to_isar_proof (frees, xs, goalstring) =
   888     let val extraaxioms = get_extraaxioms xs
   889 	val extraax_num = length extraaxioms
   890 	val origaxioms_and_steps = Library.drop (extraax_num, xs)  
   891 	
   892 	val origaxioms = get_origaxioms origaxioms_and_steps
   893 	val origax_num = length origaxioms
   894 	val axioms_and_steps = Library.drop (origax_num + extraax_num, xs)  
   895 	val axioms = get_axioms axioms_and_steps
   896 	
   897 	val steps = Library.drop (origax_num, axioms_and_steps)
   898 	val firststeps = ReconOrderClauses.butlast steps
   899 	val laststep = ReconOrderClauses.last steps
   900 	val goalstring = implode(ReconOrderClauses.butlast(explode goalstring))
   901 	
   902 	val isar_proof = 
   903 		("show \""^goalstring^"\"\n")^
   904 		("proof (rule ccontr,skolemize, make_clauses) \n")^
   905 		("fix "^(frees_to_isar_str frees)^"\n")^
   906 		(assume_isar_extraaxioms extraaxioms)^
   907 		(assume_isar_origaxioms origaxioms)^
   908 		(isar_axiomlines axioms "")^
   909 		(isar_lines firststeps "")^
   910 		(last_isar_line laststep)^
   911 		("qed")
   912 	val  outfile = TextIO.openOut(File.platform_path(File.tmp_path (Path.basic "isar_proof_file")));
   913 	
   914 	val _ = TextIO.output (outfile, isar_proof)
   915 	val _ =  TextIO.closeOut outfile
   916     in
   917 	isar_proof
   918     end;
   919 
   920 (* get fix vars from axioms - all Frees *)
   921 (* check each clause for meta-vars and /\ over them at each step*)
   922 
   923 (*******************************************************)
   924 (* This assumes the thm list  "numcls" is still there  *)
   925 (* In reality, should probably label it with an        *)
   926 (* ID number identifying the subgoal.  This could      *)
   927 (* be passed over to the watcher, e.g.  numcls25       *)
   928 (*******************************************************)
   929 
   930 (* val str = "[S%x%P%R%Q%]1ExtraAxiom()[~ Q U%~ R U%][U%]2ExtraAxiom()[~ Q U%~ P U%][U%]3ExtraAxiom()[Q U%R U%][U%]1OrigAxiom()[S x%][]2OrigAxiom()[P U%R U%][U%]6OrigAxiom()[~ S U%~ P U%][U%]7OrigAxiom()[~ S U%~ R U%][U%]1Axiom()[S x%][]2Axiom()[R U%P U%][U%]6Axiom()[~ P U%~ S U%][U%]7Axiom()[~ R U%~ S U%][U%]8Binary((6,1),(1,0))[~ P x%][]9Binary((7,1),(1,0))[~ R x%][]19Binary((9,0),(2,0))[P x%][]25Binary((8,0),(19,0))[][]";
   931 
   932 val str = "[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]";
   933 
   934 val reconstr = "[P%Q%x%xa%]1OrigAxiom()[~ P U%][U%]3OrigAxiom()[Q U%][U%]5OrigAxiom()[P (x U)%~ Q (xa U)%][U%]9Binary((7,0),(3,0))[][]7Binary((1,0),(5,0))[~ Q (xa U)%][U%]5Axiom()[P (x U)%~ Q (xa U)%][U%]3Axiom()[Q U%][U%]1Axiom()[~ P U%][U%](ALL xb::'a::type.   (~ (P::'a::type => bool) ((x::'a::type => 'a::type) xb) |    (Q::'a::type => bool) ((xa::'a::type => 'a::type) xb)) &   P xb & ~ Q xb)";
   935 
   936 
   937 val reconstr = "[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]";
   938 
   939 val thmstring = " (ALL xa::'a::type.   (~ (P::'a::type => bool) (x::'a::type) | P xa) & (~ P xa | P x)) & (((P::'a::type => bool) (xa::'a::type) | (ALL x::'a::type. P x)) &((ALL x::'a::type. ~ P x) | ~ P (xb::'a::type)))";
   940 *)
   941 
   942 fun apply_res_thm str goalstring  = let val tokens = #1 (lex str);
   943 				val _ = File.append (File.tmp_path (Path.basic "applyres")) 
   944 			           ("str is: "^str^" goalstr is: "^goalstring^"\n")	
   945                                    val (frees,recon_steps) = parse_step tokens 
   946                                    val isar_str = to_isar_proof (frees, recon_steps, goalstring)
   947                                    val foo =   TextIO.openOut (File.platform_path(File.tmp_path (Path.basic "foobar")));
   948                                in 
   949                                   TextIO.output(foo,(isar_str));TextIO.closeOut foo;Pretty.writeln(Pretty.str  isar_str); () 
   950                                end 
   951 
   952 
   953 (* val reconstr = reconstr^"[P%]51Axiom()[~P%]52Axiom[P%][]53MRR((52,0),(51,0))[][]";
   954 *)
   955 end;