The square of opposition.
Englebretsen, George
Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, p. 531-541 / Harvested from Project Euclid
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Publié le : 1976-10-14
Classification:  
@article{1093887725,
     author = {Englebretsen, George},
     title = {The square of opposition.},
     journal = {Notre Dame J. Formal Logic},
     volume = {17},
     number = {1},
     year = {1976},
     pages = { 531-541},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093887725}
}

Englebretsen, George. The square of opposition.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp.  531-541. http://gdmltest.u-ga.fr/item/1093887725/