Minimal uncountable well-ordered set
This article describes a standard counterexample to some plausible but false implications. In other words, it lists a pathology that may be useful to keep in mind to avoid pitfalls in proofs
View other standard counterexamples in topology
Definition
The minimal uncountable well-ordered set is the well-ordered set corresponding to the minimal uncountable ordinal. This is viewed as a topological space by giving it the order topology.
Topological space properties
Properties it does satisfy
- Linearly orderable space
- Normal space
- Limit point-compact space: For full proof, refer: Minimal uncountable well-ordered set is limit point-compact
Properties it does not satisfy
- Compact space: For full proof, refer: Minimal uncountable well-ordered set is not compact