> 06-XX Order, lattices, ordered algebraic structures > 06AXX Ordered sets

06A05 Total order	06A06 Partial order, general	06A07 Combinatorics of partially ordered sets
06A11 Algebraic aspects of posets	06A12 Semilattices	06A15 Galois correspondences, closure operators
06A99 None of the above, but in this section

06AXX Ordered sets