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25 March 2024
9 September 2023
RhubarbJayde
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RhubarbJayde
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RhubarbJayde
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RhubarbJayde
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RhubarbJayde
Created page with "Extendible cardinals are a powerful large cardinal notion, which can be considered a significant strengthening of weakly compact cardinals, or a combination of supercompact and superstrong cardinals. A cardinal \(\kappa\) is called \(\eta\)-extendible iff, for some \(\theta\), there is some elementary embedding \(j: V_{\kappa+\eta} \to V_\theta\) with critical point \(\kappa\). We say \(\kappa\) is extendible iff it is \(\eta\)-extendible..."
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