单词	cardinality
释义	cardinality /kɑːdɪˈnalɪti / noun (plural cardinalities) Mathematics The number of elements in a set or other grouping, as a property of that grouping.Cantor conjectured that there are no infinite cardinalities between the size of the natural numbers and the size of the real numbers (and so there are no sets S as described above).... The Skolem-Lowenheim theorem asserts that any first-order theory having an infinite model has other models of all smaller infinite cardinalities. We understand that sets have a cardinality, that is, that collections have a number associated with them and it doesn't really matter what the members of that set are.
随便看	phoney war Phong phoniatric phoniatrician phoniatrics phoniatrist phoniatry -phonic phonic phonically phonic motor phonics phonic wheel phonily phoniness phono phono- phonoautograph phonocardiogram phonocardiograph phonocardiographer phonocardiographic phonocardiographical phonocardiographically phonocardiography

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