TY - JOUR AU - A. A. Akimov TI - On an axiom of predicate calculus from ``G\"odel's incompleteness theorems'' by R.~Smullyan JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1999 SP - 60 EP - 62 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1999_2_a11/ LA - ru ID - VMUMM_1999_2_a11 ER -