1.33/0.82	NO
1.33/0.82	
1.33/0.82	Proof:
1.33/0.82	This system is not confluent.
1.33/0.82	For the unconditional CP tp2(0, add(z, x')) = tp2(z, x') the left- and right-hand sides are two different normal forms wrt R_u.
1.33/0.82	
1.44/0.84	EOF