fact: Definition CPowR0 (z : Z) (r : Rcst) := Z.ltb z Z0 && Qeq_bool (Q_of_Rcst r) (0 # 1).
imports: OrderedRing QMicromega RingMicromega Refl Sumbool Raxioms Rfunctions RIneq Rpow_def QArith Qfield Qreals DeclConstant