| 释义 |
Venn diagram|vɛn|
[Named after its inventor, John Venn (1834–1923), English logician.]
A group of circles that may or may not intersect according as the logical sets they represent have or have not elements in common.
[1884J. N. Keynes Stud. & Exerc. Formal Logic iii. v. 207 The application of Mr Venn's diagrammatic scheme to syllogistic reasonings. 1894Ibid. (ed. 3) iii. iv. 298 Syllogisms in Barbara and Camestres may be taken in order to show how Dr Venn's diagrams can be used.] 1918C. I. Lewis Survey Symbolic Logic i. 77 This method resembles nothing so much as solution by means of the Venn diagrams. 1952W. V. Quine Methods of Logic 70 Whiteness of a region in a Venn diagram means nothing but lack of information. 1970O. Dopping Computers & Data Processing i. 28 By means of Venn diagrams..set theoretic operations such as intersection can be shown in geometrical form. 1977J. L. Harper Population Biol. Plants xxiii. 725 These results are interpreted as a Venn diagram in Fig. 23/11a to show presumed niche relationships between the groups of species. |