单词 | non-emptiness |
释义 | non-emptinessn. Mathematics and Logic. The property of a set of being non-empty. ΘΚΠ the world > relative properties > number > mathematics > [noun] > mathematical property irreductibility1865 utility1881 intransitivity1889 independence1902 non-linearity1904 connexity1905 analyticity1914 irredundance1925 irreflexiveness1933 decidability1936 non-emptiness1936 undecidability1942 irredundancy1952 irreflexivity1964 single-valuedness1968 the mind > mental capacity > philosophy > logic > predicate or propositional logic > [noun] > set theory or extension > other elements of isomorphism1892 axiom of reducibility1908 non-emptiness1936 1936 Jrnl. Symbolic Logic 1 72 Postulates are added which provide for the seriality and non-emptiness of R. 1950 W. V. Quine Methods of Logic (1952) 80 The bar..can be made to lie across a boundary and thus indicate non-emptiness of a compound region. 1965 G. E. Hughes & D. G. Londey Elements Formal Logic xlvi. 339 Each schema..is valid under the hypothesis of the non-emptiness of some one term. 1999 Proc. National Acad. Sci. U.S.A. 96 8297/2 If d > 1, the necessary conditions on u to guarantee the nonemptiness of K(u) are quite severe. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < |
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