∀ {X : Type u_1} {Y : Type u_2} [inst : DiffeologicalSpace X] [inst_1 : DiffeologicalSpace Y] {n : ℕ}
  {p : EuclideanSpace ℝ (Fin n) → X} {f : X → Y}, Diffeology.IsPlot p → Diffeology.DSmooth f → Diffeology.IsPlot (f ∘ p)