Normal invariants and G/O (Ex)
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The aim of these exercises is to follow the proof of [Lück2001, Theorem 3.45].
Given the map , define to be the homotopy fibre of :
In [Lück2001, p 61] there is defined a group of stable fibre homotopy trivialisations of smooth vector bundles over a space which is denoted .
Exercise 0.1. Show that for any space there is a bijection