1.89/1.28	NO
1.89/1.28	
1.89/1.28	Proof:
1.89/1.28	This system is not confluent.
1.89/1.28	For the unconditional CP h(b) = h(c) the left- and right-hand sides are two different normal forms wrt R_u.
1.89/1.28	
2.12/1.32	EOF