fact: Definition jtype_enum_f (A B : finType) n (f : { f : {ffun A -> {ffun B -> 'I_n.+1}} | (\sum_(a in A) \sum_(b in B) f a b == n)%nat}) : option (P_ n ( A , B )).
imports: mathcomp(all_ssreflect ssralg ssrnum fingroup perm) Reals mathcomp(Rstruct) ssrR Reals_ext realType_ext ssr_ext ssralg_ext logb fdist entropy num_occ channel types