0.00/0.73	YES
0.00/0.73	
0.00/0.73	Problem:
0.00/0.73	add(x, 0()) -> x
0.00/0.73	add(x, s(y)) -> s(z) <= add(x, y) = z
0.00/0.73	
0.00/0.73	Proof:
0.00/0.73	This system is confluent.
0.00/0.73	By \cite{SMI95}, Corollary 4.7 or 5.3.
0.00/0.73	This system is oriented.
0.00/0.73	This system is of type 3 or smaller.
0.00/0.73	This system is right-stable.
0.00/0.73	This system is properly oriented.
0.00/0.73	This is an overlay system.
0.00/0.73	This system is left-linear.
0.00/0.73	All 0 critical pairs are trivial or infeasible.
0.00/0.73	
0.00/1.12	EOF