fact: Definition eqSubMS (X : MetricSpace) (P : X -> Prop) (a : {X | P X}) (b : {X | P X}) := (projT1 a) [=] (projT1 b).
imports: ssreflect CSetoids CSetoidFun CFields CPolynomials Program Omega Equivalence Morphisms Wf Morphisms CRings CRing_Homomorphisms Rational Setoid CPoly_NthCoeff CPoly_Degree CReals Intervals CauchySeq IntervalFunct MoreIntervals MoreFunctions Composition seq bigopsClass Structures ProductMetric CRIR Integration Qmetric QposMinMax