fact: Definition d : {fdist 'I_4 * 'I_4} := locked (FDist.make f0 f1).
imports: mathcomp(all_ssreflect ssralg ssrnum fingroup finalg matrix) Reals Lra mathcomp(Rstruct) ssrR Reals_ext realType_ext logb ssr_ext ssralg_ext bigop_ext fdist proba jfdist_cond entropy