Topology MOC Möbius strip The Möbius strip is a non-orientable differentiable manifold. Let 𝑋 =[0,1] ×(0,1) and let (0,𝑦) ∼(1,1 −𝑦) be an equivalence relation on 𝑋. Then 𝑀 =𝑋/ ∼ Möbius strip. topology develop | en | SemBr