| 单词 | existential quantifier |
| 释义 | existential quantifiernoun Logic.a quantifier indicating that the sentential function within its scope is true for at least one value of the variable included in the quantifier. Also called particular quantifier. Compare universal quantifier. Origin of existential quantifierFirst recorded in 1935–40 Words nearby existential quantifierexistence theorem, existent, existential, existentialism, existential psychology, existential quantifier, exit, exitance, exit poll, exit pupil, exit strategy Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for existential quantifierexistential quantifier nounlogic a formal device, for which the conventional symbol is ∃, which indicates that the open sentence that follows is true of at least one member of the relevant universe of interpretation, as (∃ x) Fx meaning "something is (an) F," "something Fs," or "there are (some) Fs." Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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