págs. 1-9
págs. 1-10
págs. 1-10
págs. 1-13
págs. 1-14
Further thoughts on the ring Rc(L) in frames
Ali Akbar Estaji, Maryam Robat Sarpoushi, Mahtab Elyasi
págs. 1-14
págs. 1-14
Characterization of metrizable Esakia spaces via some forbidden configurations
Guram Bezhanishvili, Luca Carai
págs. 1-18
págs. 1-19
Every quasitrivial n-ary semigroup is reducible to a semigroup
Miguel Couceiro, Jimmy Devillet
págs. 1-19
págs. 1-20
págs. 1-21
Projectivity and linkage for completely join irreducible ideals of an expanded group
Gary L. Peterson, Stuart D. Scott
págs. 1-21
Description of closure operators in convex geometries of segments on the line
Kira Adaricheva, G. Gjonbalaj
págs. 1-22
págs. 1-22
Bases for pseudovarieties closed under bideterministic product
Alfredo Costa, Ana Escada
págs. 1-35
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