| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ax′iom of countabil′ity, [Math.]- Mathematicsthe property satisfied by a topological space in which the neighborhood system of each point has a base consisting of a countable number of neighborhoods (first axiom of countability) or the property satisfied by a topological space that has a base for its topology consisting of a countable number of subsets of the space (second axiom of countability).
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