Minimal uncountable well-ordered set

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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


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

Properties it does not satisfy