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MLQ
2000
13 years 4 months ago
2000
It is shown, constructively, that the mapping T AT is sequentially continuous with respect to the weak
MLQ
2000
13 years 4 months ago
2000
The axiom of multiple choice implies that metric spaces are paracompact but the reverse implication cannot be proved in set theory without the axiom of choice.
MLQ
2000
13 years 4 months ago
2000
We study the relationship between the countable axiom of choice and the Tychonoff product theorem for countable families of topological spaces.
MLQ
2000
13 years 4 months ago
2000
We give a corrected proof of an extension of the Robinson Splitting Theorem for the d.c.e. degrees. The purpose of this short paper is to clarify and correct the main result and p...
MLQ
2000
13 years 4 months ago
2000
: Each information system (or data table) leads to a hierarchy of binary relations on the object set in a natural way; these relational systems can serve as frames for the semantic...