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                  <mods:namePart>Bagaria, Joan</mods:namePart>
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                  <mods:dateIssued encoding="iso8601">2025-04-02T11:22:50Z2025-04-02T11:22:50Z2024-01-012025-04-02T11:22:50Z</mods:dateIssued>
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               <mods:abstract>We give a survey of results on the relative strengths of different fragments of Martin’s&#xd;
Axiom, as well as a list of the main remaining open questions.</mods:abstract>
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               <mods:accessCondition type="useAndReproduction">cc-by-nc-nd (c) Joan Bagaria, 2024 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess</mods:accessCondition>
               <mods:subject>
                  <mods:topic>Teoria de conjunts</mods:topic>
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               <mods:subject>
                  <mods:topic>Nombres cardinals</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Categories (Matemàtica)</mods:topic>
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                  <mods:topic>Set theory</mods:topic>
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                  <mods:topic>Cardinal numbers</mods:topic>
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               <mods:subject>
                  <mods:topic>Categories (Mathematics)</mods:topic>
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                  <mods:title>The relative strengths of fragments of Martin's axiom</mods:title>
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