| 单词 | empty set |
| 释义 | empty set noun[C] mathematicsspecializeduk/ˌemp.ti ˈset/us/ˌemp.ti ˈset/a set(= agroupofnumbers)thatcontainsnoelements,representedby thesymbol{} 空集，空集合（用符号{}表示）Groups and collections of things
Examplesofempty setempty set Should + be used to distribute a function over anemptysetof solutions, the result, too, should be empty. From theCambridge English Corpus If the assignment would cause a conflict with an already-assigned variable, the cache entry contains a conflict set; otherwise, it contains theemptyset. From theCambridge English Corpus The idea is to iteratively compute, starting with theemptyset, the intersection of the extensions which are compatible with the information obtained so far. From theCambridge English Corpus Computation of this set begins with theemptyset; predicate statements are added to the set as proofs for their inclusion are found. From theCambridge English Corpus We emphasise that an empty slice is a valid slice, having no conclusions, and theemptysetof slices is a valid net. From theCambridge English Corpus It also lacks a lower bound, because theemptysetis not a decomposition. From theCambridge English Corpus Each sensible graph model interprets all the closed unsolvable terms by theemptyset. From theCambridge English Corpus Theemptysetis not large because an orbit is by definition not empty. From theCambridge English Corpus Ignoring representation details for the moment, assume there is some representation of theemptyset. From theCambridge English Corpus Though it may be reasonable to interpret the completely undefined set as empty, it seems less intuitive that theemptysetshould be considered undefined. From theCambridge English Corpus Accordingly, it would be unwise for a political theorist to dismiss the category of "unintentional restrictions of freedom" as anemptyset. From theCambridge English Corpus They each simply correspond to a different kind of set (emptyset, singleton set, or set of cardinality 2 or more). From theCambridge English Corpus More precisely, when an address becomes unreachable, the set of values associated with it is reset to theemptyset. From theCambridge English Corpus Possibly some of the tuples in this form may be discarded because one or more of their parts may be theemptyset. From theCambridge English Corpus For a countably based space, choose a countable base containing theemptysetand the whole set. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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