A major problem in the constructive theory of apartness spaces is that of finding a good notion of compactness. Such a notion should (i) reduce to ``complete plus totally bounded\u27\u27 for uniform spaces and (ii) classically be equivalent to the usual Heine-Borel-Lebesgue property for the apartness topology. The constructive counterpart of the smallest uniform structure compatible with a given apartness, while not constructively a uniform structure, offers a possible solution to the compactness-definition problem. That counterpart turns out to be interesting in its own right, and reveals some additional properties of an apartness that may have uses elsewhere in the theory
We construct a T1-space that is not hereditarily compact, although each of its open sets is the inte...
AbstractPre-apartness structures are defined on YX, where X is an inhabited set and Y a uniform spac...
summary:We construct a space having the properties in the title, and with the same technique, a coun...
AbstractWe investigate constructively a pre-apartness structure that is classically important in the...
Abstract. In this note, we establish some results which suggest a possible solution to the problem o...
We present three criteria for compactness in the context of apartness spaces and Bishop-style constr...
The notion of apartness has recently shown promise as a means of lifting constructive topology from ...
AbstractPre-apartness structures are defined on YX, where X is an inhabited set and Y a uniform spac...
AbstractIn the constructive theory of uniform spaces there occurs a technique of proof in which the ...
The aim of this thesis is to understand the constructive scope of compactness. We show that it is ...
The aim of this thesis is to understand the constructive scope of compactness. We show that it is po...
summary:We consider the property of relative compactness of subspaces of Hausdorff spaces. Several e...
summary:We consider the property of relative compactness of subspaces of Hausdorff spaces. Several e...
AbstractSome new results on relationships between cardinal invariants in compacta are obtained. We e...
The work in this thesis contains some contributions to constructive point-free topology and the theo...
We construct a T1-space that is not hereditarily compact, although each of its open sets is the inte...
AbstractPre-apartness structures are defined on YX, where X is an inhabited set and Y a uniform spac...
summary:We construct a space having the properties in the title, and with the same technique, a coun...
AbstractWe investigate constructively a pre-apartness structure that is classically important in the...
Abstract. In this note, we establish some results which suggest a possible solution to the problem o...
We present three criteria for compactness in the context of apartness spaces and Bishop-style constr...
The notion of apartness has recently shown promise as a means of lifting constructive topology from ...
AbstractPre-apartness structures are defined on YX, where X is an inhabited set and Y a uniform spac...
AbstractIn the constructive theory of uniform spaces there occurs a technique of proof in which the ...
The aim of this thesis is to understand the constructive scope of compactness. We show that it is ...
The aim of this thesis is to understand the constructive scope of compactness. We show that it is po...
summary:We consider the property of relative compactness of subspaces of Hausdorff spaces. Several e...
summary:We consider the property of relative compactness of subspaces of Hausdorff spaces. Several e...
AbstractSome new results on relationships between cardinal invariants in compacta are obtained. We e...
The work in this thesis contains some contributions to constructive point-free topology and the theo...
We construct a T1-space that is not hereditarily compact, although each of its open sets is the inte...
AbstractPre-apartness structures are defined on YX, where X is an inhabited set and Y a uniform spac...
summary:We construct a space having the properties in the title, and with the same technique, a coun...