fact: Definition CRpi : CR := (r_pi 1).
imports: CoRN.algebra.RSetoid CoRN.metric2.Metric CoRN.metric2.UniformContinuity CoRN.reals.fast.CRArith CoRN.reals.fast.CRIR CoRN.reals.Q_in_CReals CoRN.model.totalorder.QMinMax CoRN.reals.fast.CRarctan_small CoRN.transc.MoreArcTan CoRN.tactics.CornTac MathClasses.interfaces.abstract_algebra CoRN.stdlib_omissions.Q