1.14/0.74 NO 1.14/0.74 1.14/0.74 Proof: 1.14/0.74 This system is not confluent. 1.14/0.74 For the unconditional CP c = d ctcap(c) and ctcap(d) wrt R_u are not unifiable. 1.14/0.74 1.26/0.76 EOF