Search and Browse the MSC 2000

20-XX Group theory and generalizations → ZMATH

20Nxx Other generalizations of groups → ZMATH

20N02 Sets with a single binary operation (groupoids) → ZMATH

20N05 Loops, quasigroups [See also 05Bxx] → ZMATH

20N10 Ternary systems (heaps, semiheaps, heapoids, etc.) → ZMATH

20N15 $n$-ary systems $(n\ge 3)$ → ZMATH

20N20 Hypergroups → ZMATH

20N25 Fuzzy groups [See also 03E72] → ZMATH

20N99 None of the above, but in this section → ZMATH