proposition: Lemma eta0'_natural : naturality _ _ eta0'.
proof: Proof. by move=> a b h; rewrite funeqE=> x; rewrite FIdf /eta0' /= fsdistmap1. Qed.
imports: Reals mathcomp(all_ssreflect) mathcomp(boolp classical_sets) mathcomp(finmap) infotheo(Reals_ext classical_sets_ext ssrR ssr_ext) infotheo(fdist fsdist convex necset) monae_lib HB(structures) category