fact: Definition Reval_formula' := eval_sformula Rplus Rmult Rminus Ropp (@eq R) Rle Rlt N.to_nat pow R_of_Rcst.
imports: OrderedRing QMicromega RingMicromega Refl Sumbool Raxioms Rfunctions RIneq Rpow_def QArith Qfield Qreals DeclConstant EnvRing