Dt1Dconstant0D+xy+DxDyD*xy+*yDx*xDyD-xy-DxDy2.1D14t05100constant06001+22*22-23D11t010constant000+212*212-212AProVEAProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Statistics for single proof: 100.00 % (2 real / 0 unknown / 0 assumptions / 2 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe