Mathematics Subject Classification 2000

20Nxx Other generalizations of groups ( 0 Dok. )

• 20N02 Sets with a single binary operation (groupoids) ( 0 Dok. )
• 20N05 Loops, quasigroups ( 0 Dok. )
• 20N10 Ternary systems (heaps, semiheaps, heapoids, etc.) ( 0 Dok. )
• 20N15 n-ary systems (nge 3) ( 0 Dok. )
• 20N20 Hypergroups ( 0 Dok. )
• 20N25 Fuzzy groups ( 0 Dok. )
• 20N99 None of the above, but in this section ( 0 Dok. )