proposition: Fact Op_int_exp_subproof n m : Z_of_int (n ^+ m) = (Z_of_int n ^ Z.of_nat m)%Z.
proof: Proof. rewrite -Zpower_nat_Z; elim: m => //= m <-; rewrite exprS; lia. Qed.
imports: Coq(ZArith ZifyClasses ZifyBool) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(div choice fintype tuple finfun bigop finset prime) mathcomp(order binomial ssralg countalg ssrnum ssrint rat) mathcomp(intdiv) mathcomp(zify_ssreflect ssrZ)