fact: Definition mk_point (R : Rel) (xl : πl R) (xr : πr R) (xw : R xl xr) : ⟬R⟭ := dpair _ ⟨xl, xr⟩ xw.
imports: Coq(ssreflect ssrfun ssrbool) Coq(Relation_Definitions Morphisms) Mon(SPropBase) Relational(Category RelativeMonads EnrichedSetting)