Logic. [ad. L. convertend-us, -um to be converted, gerundive pple. of convertĕre to CONVERT.] The name given by Hamilton to the proposition to be converted, or as it stands before conversion; see CONVERT v. 4 b.

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1837–8.  Sir W. Hamilton, Logic (1860), I. 256. The original or given proposition is called the Converse or Converted … It would be better to call [it] the Convertend … This language I shall use. Ibid., I. 257.

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1870.  Jevons, Elem. Logic, x. (1880), 82. In order that the converse or converted proposition shall be inferred from the convertend.

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