How many antisymmetrical relations are there on a set $B =\{ 1,2,3\}$?
74114
How to find the number of anti-symmetric relations?
121860
Number of well-ordering relations on a well-orderable infinite set $A$?
64658
How many associative binary operations for a set of two elements?
40937
Is the set of partial order relations over $ \mathbb{N}$ countable?
25257
How to see if certain representation of $SU(2)$ is symmetric/antisymmetric/mixed?
102383
Associativity of Cartesian Product
103378
What is a composition of two binary relations geometrically?
137761
Why are the fundamental and anti-fundamental representation in $\text{SL}(2,\mathbb{C})$ not equivalent?
154841
Computing symmetry/combinatorial factor for a diagram in $\phi^4$ theory
71977
Give an example of a relation R on $A^2$ which is reflexive, symmetric, and not transitive
12459
Associativity of symmetric difference of sets
122839
how many different equivalence relations
134840
Generators and relations for $\text{PSL}(2, \mathbb{F}_q)$
102990
Prove or disprove: $S_{10} = \langle (1,3),(1,2, ... ,10) \rangle$
20736
Prove the relation $R$ in $N \times N$ defined by $(a,b) \simeq (c,d)$ iff $ad=bc$ is an equivalence relation.
85713
Showing Parallelism is an equivalence relation in $\Bbb R ^2$
109596
Isomorphism from $\mathrm{Aut}(\mathbb{Z}/2\mathbb{Z}\times \mathbb{Z}/2\mathbb{Z})$ to $S_3$