| 单词 | particular affirmative |
| 释义 | > as lemmasparticular affirmative particular affirmative n. Logic a proposition of the form ‘some X is Y’; cf. sense A. 1b, particular negative n.Symbol I: see I n.1 4. ΚΠ 1551 T. Wilson Rule of Reason sig. Gvijv I dothe signifie a particular affirmatiue. O. doth signifie a particular negatiue. 1696 J. Sergeant Method to Sci. iii. ii. 237 All Propositions..must be either Universal Affirmatives or Universal Negatives, Particular Affirmatives, or Particular Negatives. 1773 E. Bentham Introd. Logick ii. ii. 42 An universal affirmative can be converted with certainty only into a particular affirmative; as, All Men are Animals, into Some Animals are Men. 1870 A. Bain Logic i. 115 These obverted forms are Particular Affirmatives, and are therefore converted simply. 1906 C. E. Hooper Anat. Knowl. i. xiii. 50 The Particular Affirmative has, as its principal forms:—Some X's are Y (e.g., Some plants are sensitive); [etc.]. 1999 Bull. Symbolic Logic 5 457 Similarly, the particular affirmative is equivalent to its converse, since ab ≠ 0 is equivalent to ba ≠ 0. < as lemmas |
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