fact: Definition composePathOver {X:Type} {x x' x'':X} {p:x=x'} {p':x'=x''} {Y : X -> Type} {y : Y x} {y' : Y x'} {y'' : Y x''} : PathOver p y y' → PathOver p' y' y'' → PathOver (p @ p') y y''.
imports: UniMath.Foundations.All UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.PartA