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Let denote the class of cardinals. For all cardinals and , means that there is an injection from a set of cardinality into a set of cardinality , and means that there is a partial surjection from a set of cardinality onto a set of cardinality . A doubly ordered set is a triple such that is a partial ordering on , is a preordering on , and . In 1966, Jech proved that for every partially ordered set , there exists a model of in which can be embedded into . We generalize this result by showing that for every doubly ordered set , there exists a model of in which can be embedded into .

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