697.26/299.37	MAYBE
697.26/299.37	
697.26/299.37	Problem:
697.26/299.37	 strict:
697.26/299.37	  le(0(),y) -> true()
697.26/299.37	  le(s(x),0()) -> false()
697.26/299.37	  le(s(x),s(y)) -> le(x,y)
697.26/299.37	  pred(s(x)) -> x
697.26/299.37	  minus(x,0()) -> x
697.26/299.37	  minus(x,s(y)) -> pred(minus(x,y))
697.26/299.37	  mod(0(),y) -> 0()
697.26/299.37	  mod(s(x),0()) -> 0()
697.26/299.37	  mod(s(x),s(y)) -> if_mod(le(y,x),s(x),s(y))
697.26/299.37	  if_mod(true(),s(x),s(y)) -> mod(minus(x,y),s(y))
697.26/299.37	  if_mod(false(),s(x),s(y)) -> s(x)
697.26/299.37	 weak:
697.26/299.37	  rand(x) -> x
697.26/299.37	  rand(x) -> rand(s(x))
697.26/299.37	
697.26/299.37	Proof:
697.26/299.37	 Open
697.26/299.38	EOF