apaˈgogical, a.
[f. prec. + -al1.]
Of the nature of apagoge; by reductio ad absurdum.
| 1706 Phillips, Apagogical Demonstrations. 1734 Berkeley Analyst §25. 41 Why any other apagogical Demonstration, or Demonstration ad absurdum should be admitted. 1860 Fleming Voc. Philos. s.v. Ostensive, A proof..is indirect, or apagogical when it evinces the truth of a thesis through the falsehood of its opposite, that is, mediately. |