YES abax1abbax1bx1bbx12.1abax1abbax1bx1bbx1abbaaax1abbbbaaax1abbaabx1abbbbaabx1bax1bbbax1bbx1bbbbx121ab10110221ba10212021aa10122001bb10212001bax1bbbax1bbx1bbbbx1AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (4 real / 0 unknown / 0 assumptions / 4 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe