YES activeffamarkfgfamarkfXactivefXmarkaactiveamarkgXactivegmarkXfmarkXfXfactiveXfXgmarkXgXgactiveXgX2.1activeffamarkfgfaactiveffafgfaactiveffagfamarkfXactivefXmarkaactiveamarkgXactivegmarkXmarkgXgmarkXmarkgXmarkXfmarkXfXfactiveXfXgmarkXgXgactiveXgXtruemarkgXmarkXtruegmarkx0gactivex0markgXmarkX1true1markgXactivegmarkXfalsemarkaactiveafalsemarkfXactivefXactiveffamarkfgfatruefmarkx0factivex0gmarkx0gactivex01mark141f1551active1421a04g10activeffafgfafalseactiveffagfafalsemarkgXgmarkXfalsefactiveXfXfmarkXfXtrueactiveffamarkfx0markamarkgx0factiveXfX1true1fmarkXfX1true1gactiveXgXgmarkXgXtrueactiveffamarkfx0markamarkgx0gactiveXgX1true1gmarkXgX1true1AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (15 real / 0 unknown / 0 assumptions / 15 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe