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<p>With the use of the notion of an order ideal, we prove that many types of approximation spaces are projects or retracts of certain approximation spaces with a base consisting of compacts.</p>

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Retracts of Approximation Spaces

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • M. V. Schwidefsky

摘要

With the use of the notion of an order ideal, we prove that many types of approximation spaces are projects or retracts of certain approximation spaces with a base consisting of compacts.