TY - JOUR AU - Tourlakis, George TI - A New Arithmetically Incomplete First-Order Extension of Gl All Theorems of Which Have Cut Free Proofs JO - Bulletin of the Section of Logic PY - 2016 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BSL_2016_45_1_a0/ LA - en ID - BSL_2016_45_1_a0 ER -