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Jan
13
revised Permutations of length $13$, decomposition into cycles
added 159 characters in body
Jan
12
answered Permutations of length $13$, decomposition into cycles
Dec
13
answered What is the use of sets above the Complex set?
Oct
29
comment Trouble understanding Latin squares and group theory
One can also define infinite, uncountable, even continuous quasigroups and varieties of quasigroups and loops that are not defined by a latin square but (for instance) by generators, relations and identities. For an introduction to that see for example works by J. D. H. Smith Postmodern Algebra, works by Mal'cev, Sabinin, etc. Lookup also Moufang relations, Bol Loops.
Oct
29
comment Relations between the Latin squares of order n and the groups of order n.
You don't take into account that you can permute the rows or the symbols independently of the columns (or vice-versa) and still have a latin square (or rectangle) for that matter. There are evident normalizations, symmetries and overlaps so latin squares/rectangles arising from group Cayley tables will exhibit a lot less variety upon these transformations than latin squares coming from very nonassociative quasigroups and loops.
Jun
20
answered Is there an example of nonassociative arithmetic addition?
Jun
20
comment Is there an example of nonassociative arithmetic addition?
@JoshuaHonig What Martigan and mixedmath say is true but there are two other aspects : 1) in rings, fields and their generalizations (i.e. modules, near-ring, near-fields, k-, there are at least two binary operations, and by analogy with the classical situation, one operation is called addition and the other multiplication. 2) addition is typically associated with the idea of the magnitude of the result being close to the magnitude of the larger of the elements being combined and multiplication with expansion of magnitude (analogy to the area, the volume, a list of possibilities etc.)
May
21
answered computing in a loop
May
5
revised dynkin-diagrams wiki description
added 955 characters in body
May
5
revised dynkin-diagrams wiki excerpt
added 423 characters in body
May
5
wiki created dynkin-diagrams description
May
5
wiki created dynkin-diagrams excerpt
May
5
suggested approved edit on dynkin-diagrams tag wiki
May
5
suggested approved edit on dynkin-diagrams tag wiki excerpt
May
5
comment Finding an equation of circle which passes through three points
Are you sure that your solution covers all degenerate cases ?
Mar
22
awarded  Yearling
Mar
15
awarded  Guru
Feb
10
comment Expressing a sequence with two sigma notation
$\NN$ does have zero. You don't need to add it.
Feb
10
revised Circular permutations - $n$ sitting at a round table without repeating neighbors
Added more likely cause of original miscalculation.
Feb
10
answered Circular permutations - $n$ sitting at a round table without repeating neighbors