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Convergent net in a quasi-uniform space which is not Cauchy

There are several definitions of Cauchy filters on a quasi-uniform space $(X,\mathcal U)$ [K]. For instance, a filter $\mathcal F$ on $(X,\mathcal U)$ is called a left $K$-Cauchy (resp. right $K$-C …
Alex Ravsky's user avatar
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2 votes
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The subbase theorem for total boundedness

It seems the following. The answer is positive. Let $\mathcal S$ be a subbase satisfying the condition and $U\in\mathcal U$ be an arbitrary entourage. Then there exists a finite subfamily $\mathcal …
Alex Ravsky's user avatar
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