
Keywords: primary; 18A22; 46M40; 54B10; 18A35; 54B30; 18B35; secondary; 06D10; 18A30; 54A05; 54E55; 18B30; Directed set; Inverse system; Inverse (projective) limit; Plain texture; Ditopology; Thread; Bonding map; Product; Equalizer; Real texture; Contravariant func