%0 Journal Article
%A Alexander Häussler
%T Defining cardinal addition by ≤-formulas
%J Fundamenta Mathematicae
%D 1983
%P 195-205
%V 115
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-115-3-195-205/
%R 10.4064/fm-115-3-195-205
%G en
%F 10_4064_fm_115_3_195_205