proposition: Lemma asin_lepi2 x : -1 <= x <= 1 -> asin x <= pi / 2.
proof: Proof. by move=> /asin_def[/andP[]]. Qed.
imports: mathcomp(all_ssreflect ssralg ssrint ssrnum matrix) mathcomp(interval rat) mathcomp(mathcomp_extra boolp classical_sets functions) reals ereal nsatz_realtype signed topology normedtype landau sequences derive realfun exp