Abstract
An elementary embedding [Formula: see text] between two inner models of [Formula: see text] is cardinal preserving if [Formula: see text] and [Formula: see text] correctly compute the class of cardinals. We look at the case [Formula: see text] and show that there is no nontrivial cardinal preserving elementary embedding from [Formula: see text] into [Formula: see text], answering a question of Caicedo.
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