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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access July 6, 2015

On some ideal related to the ideal (v0)

  • Piotr Kalemba
From the journal Open Mathematics


The ideal (v0) is known in the literature and is naturally linked to the structure [ω]ω. We consider some natural counterpart of the ideal (v0) related in an analogous way to the structure Dense(ℚ) and investigate its combinatorial properties. By the use of the notion of ideal type we prove that under CH this ideal is isomorphic to (v0).


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Received: 2014-9-12
Accepted: 2014-4-3
Published Online: 2015-7-6

©2015 Piotr Kalemba

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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