TY - JOUR AU - Grant, Douglass L. TI - The Open Mapping and Closed Graph Theorem for Embeddable Topological Semigroups JO - Canadian mathematical bulletin PY - 1975 SP - 671 EP - 674 VL - 18 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-117-x/ DO - 10.4153/CMB-1975-117-x ID - 10_4153_CMB_1975_117_x ER -