%0 Journal Article
%T A streamlined proof of Goodwillie's n-excisive approximation
%A Charles Rezk
%J Mathematics
%D 2008
%I arXiv
%R 10.2140/agt.2013.13.1049
%X We give a shorter proof of Lemma 1.9 from Goodwillie, "Calculus III", which is the key step in proving that the construction P_nF gives an n-excisive functor.
%U http://arxiv.org/abs/0812.1324v2