fact: Definition Reval_expr := eval_pexpr Rplus Rmult Rminus Ropp R_of_Rcst N.to_nat pow.
imports: OrderedRing QMicromega RingMicromega Refl Sumbool Raxioms Rfunctions RIneq Rpow_def QArith Qfield Qreals DeclConstant EnvRing