1.90/1.25	NO
1.90/1.25	
1.90/1.25	Proof:
1.90/1.25	This system is not confluent.
1.90/1.26	For the unconditional CP c = d the left- and right-hand sides are two different normal forms wrt R_u.
1.90/1.26	
1.99/1.28	EOF