2.11/1.70	NO
2.11/1.70	
2.12/1.70	Proof:
2.12/1.70	This system is not confluent.
2.12/1.70	Removed infeasible rules from system R.
2.12/1.70	For the unconditional CP c(a) = c(b) the left- and right-hand sides are two different normal forms wrt R_u.
2.12/1.70	
4.47/2.26	EOF