*x*yz*otimesxyz*1yy*+xyzoplus*xz*yz*xoplusyzoplus*xy*xz2.0*x*yz*otimesxyz*+xyz*xz*+xyz*yz*xoplusyz*xy*xoplusyz*xztrue1*212*211112otimes20+20oplus211112*+xyz*xz*+xyz*yz1*22112+22122*+xyz*xz*+xyz*yz1*211+211112
AProVE
20cf63ea9f01bf40524adf2af9b95e39102e7dab rene 20110328 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe