----- Otter 3.0.4, August 1995 ----- The job was started by mccune on gyro, Thu Nov 2 00:20:04 1995 ----> UNIT CONFLICT at 0.06 sec ----> 10 [binary,8.1,7.1] $F. Length of proof is 2. Level of proof is 1. ---------------- PROOF ---------------- 3,2 [] x*x=x. 4 [] (x*y)*x=y. 6 [] ((A*A)*B)* (C* (A*B))!=C. 7 [copy,6,demod,3] (A*B)* (C* (A*B))!=C. 8 [para_into,4.1.1.1,4.1.1] x* (y*x)=y. 10 [binary,8.1,7.1] $F. ------------ end of proof -------------