%0 Journal Article %A Voutsadakis, George %T Categorical Abstract Logic: Hidden Multi-Sorted Logics as Multi-Term π-Institutions %J Bulletin of the Section of Logic %D 2016 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BSL_2016_45_2_a2/ %G en %F BSL_2016_45_2_a2