(** * field and ring tactics for rational numbers *)

Definition Qsrt : ring_theory 0 1 Qplus Qmult Qminus Qopp Qeq.Definition Qsft : field_theory 0 1 Qplus Qmult Qminus Qopp Qdiv Qinv Qeq.

Lemma Qpower_theory : power_theory 1 Qmult Qeq Z.of_N Qpower.