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el barto
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$\kappa$-Suslin (Aronszajn, Kurepa) subtree of the complete binary tree, $2^{\lt \kappa}$
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Regressive injective function in a set of infinite cardinals
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$\kappa$-Suslin (Aronszajn, Kurepa) subtree of the complete binary tree, $2^{\lt \kappa}$
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Regressive injective function in a set of infinite cardinals
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