/*
 * @(#)$Id: cnc_cons,v 1.1 1994/09/16 09:35:20 dream Exp $
 *
 * $Log: cnc_cons,v $
 * Revision 1.1  1994/09/16 09:35:20  dream
 * Initial revision
 *
 */

problem([]==>x:pnat=>y:pnat list=>z:pnat list=>y=z in pnat list=>x::y=x::z in pnat list,
normalize([normal(imply_intro),normal(univ_intro),normal(univ_intro),normal(univ_intro)]),lambda(x,lambda(y,lambda(z,lambda(v0,_7546)))),
[problem([x:pnat,y:pnat list,z:pnat list,v0:y=z in pnat list]==>x::y=x::z in pnat list,
 sym_eval([equal(v0,left)]),_7555,
 [problem([x:pnat,y:pnat list,z:pnat list,v0:y=z in pnat list]==>x::y=x::y in pnat list,
  tautology(identity),axiom,
  [
  ]) ext _7555
 ]) ext _7546
]).
