%0 Journal Article %T Axioms of affine buildings %A Petra N. Schwer %J Mathematics %D 2009 %I arXiv %X We prove equivalence of certain axiom sets for affine buildings. Along the lines a purely combinatorial proof of the existence of a spherical building at infinity is given. As a corollary we obtain that ``being an affine building'' is independent of the metric structure of the space. %U http://arxiv.org/abs/0909.2967v1