/*
 * @(#)$Id: plus2,v 1.1 1994/09/16 09:38:16 dream Exp $
 *
 * $Log: plus2,v $
 * Revision 1.1  1994/09/16 09:38:16  dream
 * Initial revision
 *
 */

problem([]==>x:pnat=>y:pnat=>plus(s(x),y)=s(plus(x,y))in pnat,
repeat intro then simplify,lambda(x,lambda(y,axiom)),
[
]).
