KHACHATRYAN, I. G. ON THE INTUITIVE SET THEORY AND ITS FORMALIZATION. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 42, n. 2 (216), p. 3–12, 2023. DOI: 10.46991/PYSU:A/2008.42.2.003. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol42_no2_2008_p003-012. Acesso em: 22 jul. 2024.