WORST_CASE(?, O(n^1)) first0XnilfirstsXconsYconsYfromXconsX00nil0s1cons1first2from112.110012000nil00s000cons000first0001from002nil11cons101cons102AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (1 real / 0 unknown / 0 assumptions / 1 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe