fact: Definition size_of_unsolved_part pb := list_size_mul _ (fun s_t => match s_t with (s,t) => max (size s) (size t) end) pb.(unsolved_part).
imports: Coq(Arith Wf_nat Wellfounded List Multiset Relations) CoLoR(closure decidable_set ordered_set more_list list_permut list_set list_sort dickson term_spec term)