TY - JOUR AU - A. E. Pentus AU - M. R. Pentus TI - Proof nets for the Lambek calculus with one division and a~negative-polarity modality for weakening JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2020 SP - 247 EP - 257 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2020_23_2_a13/ LA - ru ID - FPM_2020_23_2_a13 ER -