Pledger lemma and the modal system $S3\deg$.
Sobociński, Bolesław
Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, p. 253-256 / Harvested from Project Euclid
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Publié le : 1976-04-14
Classification:  02C10 
@article{1093887531,
     author = {Soboci\'nski, Boles\l aw},
     title = {Pledger lemma and the modal system $S3\deg$.},
     journal = {Notre Dame J. Formal Logic},
     volume = {17},
     number = {1},
     year = {1976},
     pages = { 253-256},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093887531}
}

Sobociński, Bolesław. Pledger lemma and the modal system $S3\deg$.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp.  253-256. http://gdmltest.u-ga.fr/item/1093887531/