TY - JOUR AU - Stanley Burris AU - Errol Jeffers TI - On the simplicity and subdirect irreducibility of Boolean ultrapowers JO - Colloquium Mathematicum PY - 1978 SP - 215 EP - 218 VL - 39 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-39-2-215-218/ DO - 10.4064/cm-39-2-215-218 LA - en ID - 10_4064_cm_39_2_215_218 ER -