TY - JOUR AU - M. M. Izmailov TI - The lattice of extensions of the modal logic of two equivalence relations has the cardinality of the continuum JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2011 SP - 46 EP - 48 IS - 4 UR - http://geodesic.mathdoc.fr/item/VMUMM_2011_4_a7/ LA - ru ID - VMUMM_2011_4_a7 ER -