Musings on general topology and orderings

Selection principles: “Omega choose T” vs “Omega choose Gamma”

The Vietoris topology as a functor V : Top -> Top

The Parity Principle: a pitfall in the use of Zorn’s Lemma

Ramsey functions, property B, and the Axiom of Choice

A Funny Field

Making critical graphs as regular as possible

Generalizing the T_0 separation axiom

Basics on towers on the natural numbers

A definition of minor (in graph theory)

Any graph or its complement is connected