∀ {X : Type u_1} (d : DiffeologicalSpace.CorePlotsOn X) {n m : ℕ} {p : EuclideanSpace ℝ (Fin m) → X}
  {f : EuclideanSpace ℝ (Fin n) → EuclideanSpace ℝ (Fin m)}, p ∈ {p | d.isPlot p} → ContDiff ℝ (↑⊤) f → d.isPlot (p ∘ f)