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MT560 Algebraic Topology Autumn 2016 – Homework 2

MT560 Algebraic Topology Autumn 2016 – Homework 2 1. Suppose that X,Y are spaces with Y Hausdorﬀ and f : X → Y is continuous. Show that the graph of f, Gr(f) = {(x,f(x)) ; x ∈ X}, is a closed…