Why is ordered pair representation as a set correct?
37921
Please Explain Kuratowski Definition of Ordered Pairs
108957
Cardinality of a totally ordered union
94697
Grouping the first two elements in a list of ordered triples
48502
number of ordered pairs of integers $(x,y)$ satisfying the equation
91938
Countable Matrix Representation
74377
Is the natural order relation on an idempotent semiring total/linear?
115100
Operator Ordering Ambiguities
70266
1-1 correspondence between [0,1] and [0,1)
3217
Construction of uncountably many non-isomorphic linear (total) orderings of natural numbers
135250
Ordered Pair Formal Definition
115123
SetAttributes[f,Flat]: Why the order dependence?
71976
Is every element on a set also a set?
118560
Ordered N-Tuples as Cartesian Products of Indexed Families
113083
How to prove a set equality?
36325
Embedding ordinals in $\mathbb{Q}$
117479
Mutual set of representatives for left and right cosets: what about infinite groups?
140044
A set union find algorithm