contrapone, v.
(kɒntrəˈpəʊn)
[ad. L. contrāpōnĕre to place against or opposite.]
Logic. To convert by contraposition.
| 1864 Bowen Logic vi. 159 Logicians seem to have overlooked the fact that E can be contraponed into I. Ibid. vii. 212 The last..example, which is now the Modus Tollens, becomes the following, if we contrapone the Sumption. |