Modus tollens.
Bosley, Richard
Notre Dame J. Formal Logic, Tome 20 (1979) no. 1, p. 103-111 / Harvested from Project Euclid
Publié le : 1979-01-14
Classification:  03B45,  03A05
@article{1093882408,
     author = {Bosley, Richard},
     title = {Modus tollens.},
     journal = {Notre Dame J. Formal Logic},
     volume = {20},
     number = {1},
     year = {1979},
     pages = { 103-111},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093882408}
}
Bosley, Richard. Modus tollens.. Notre Dame J. Formal Logic, Tome 20 (1979) no. 1, pp.  103-111. http://gdmltest.u-ga.fr/item/1093882408/