[130] Prerequisites:[124]↺↻,[12W]↺↻.If \(A\) is convex and \(\hat B\) is the convex envelope (see [2G4]↺↻ of \(B\), show that \(A ∘ B⊆ A ∘ \hat B\). Show with an example that equality may not apply.
[131]↺↻
