Partial order is intersection of linear extensions also if poset is infinite?
76521
Every partial order can be extended to a linear ordering
120522
Showing any countable, dense, linear ordering is isomorphic to a subset of $\mathbb{Q}$
84609
Unary intersection of the empty set
139988
Counter example for a result of intersection of subspaces
45878
Elementary Set Theory: Ordinals, Well Orderings and Isomorphisms
62977
Show on $\mathbb{N}$ there are $2^{\aleph_0}$ nonisomorphic linear orders.
140168
What are the basis for co-countable and co-finite topologies
25769
Finding all posets on a set
33008
Linear order where every initial segment is finite
132868
Bijection between an infinite set and its union of a countably infinite set
16654
Unions and Intersections of Open Sets are Open
63618
Can all ordinals be obtained by taking successors and countable limits?
40937
Is the set of partial order relations over $ \mathbb{N}$ countable?
140799
Prove that there exist uncountable family of subsets of $\mathbb{N}$ which is linearly (totally) ordered by relation of inclusion.
22482
How can an ordered pair be expressed as a set?
21176
Closure of the set in dictionary order topology.
157218
If $E\subseteq X$ is connected, $E\cap A\neq\emptyset$ and $E\cap(X\setminus A)\neq\emptyset$ then $E\cap\partial A\neq\emptyset$