TY - JOUR AU - Roman Suszko TI - Equational logic and theories in sentential languages JO - Colloquium Mathematicum PY - 1974 SP - 19 EP - 23 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-29-1-19-23/ DO - 10.4064/cm-29-1-19-23 LA - en ID - 10_4064_cm_29_1_19_23 ER -