TY  - JOUR
AU  - I. P. Petrov
TI  - On the concepts of ``all'' and ``every''
JO  - Algebra i logika
PY  - 1963
SP  - 17
EP  - 19
VL  - 1
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1963_1_6_a1/
LA  - ru
ID  - AL_1963_1_6_a1
ER  -