TY - JOUR ID - TI - JO - منطق‌پژوهی JA - LSJ LA - fa SN - 2383-0662 Y1 - 1970 PY - 1970 VL - IS - SP - EP - DO - N2 - UR - https://logicalstudy.ihcs.ac.ir/article_.html L1 - ER -