Ghorbani, Shokoofeh, Mohsen Nourany, and Arsham Borumand Saeid. “Open Filters and Congruence Relations on Self-Distributive Weak Heyting Algebras”. Bulletin of the Section of Logic (June 21, 2024): 23 pp. Accessed July 22, 2024. https://czasopisma.uni.lodz.pl/bulletin/article/view/22007.