TY - JOUR AU - Alexander Abian TI - Two properties of free Boolean algebras JO - Colloquium Mathematicum PY - 1974 SP - 51 EP - 53 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-29-1-51-53/ DO - 10.4064/cm-29-1-51-53 LA - en ID - 10_4064_cm_29_1_51_53 ER -