TY  - JOUR
AU  - S. Yu. Maslov
TI  - Inverse method of establishing deducibility for non-prenex formulas of predicate calculus
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 22
EP  - 25
VL  - 172
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a4/
LA  - ru
ID  - DAN_1967_172_1_a4
ER  -