TY - JOUR AU - John Baldwin TI - Atomic compactness in $ℵ_1$ - categorical Horn theories JO - Fundamenta Mathematicae PY - 1973 SP - 263 EP - 268 VL - 83 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-83-3-263-268/ DO - 10.4064/fm-83-3-263-268 LA - en ID - 10_4064_fm_83_3_263_268 ER -