06Axx Ordered sets

• 06A05 Total order
• 06A06 Partial order, general
• 06A07 Combinatorics of partially ordered sets
• 06A08 Shellable posets, Cohen-Macaulay posets, See also {52B20}
• 06A09 Cohomology of posets, See also {05E25}
• 06A12 Semilattices, See also {20M10}
• 06A15 Galois correspondences, closure operators
• 06A23 Complete lattices, completions
• 06A99 None of the above but in this section