1.89/1.26	NO
1.89/1.27	
1.89/1.27	Proof:
1.89/1.27	This system is not confluent.
1.89/1.27	For the unconditional CP c = d the left- and right-hand sides are two different normal forms wrt R_u.
1.89/1.27	
2.09/1.31	EOF