Bases for S$4$ and S$4.2$ without added axioms.
Zeman, J. Jay
Notre Dame J. Formal Logic, Tome 4 (1963) no. 1, p. 227-230 / Harvested from Project Euclid
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Publié le : 1963-05-14
Classification:  02.27 
@article{1093957581,
     author = {Zeman, J. Jay},
     title = {Bases for S$4$ and S$4.2$ without added axioms.},
     journal = {Notre Dame J. Formal Logic},
     volume = {4},
     number = {1},
     year = {1963},
     pages = { 227-230},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093957581}
}

Zeman, J. Jay. Bases for S$4$ and S$4.2$ without added axioms.. Notre Dame J. Formal Logic, Tome 4 (1963) no. 1, pp.  227-230. http://gdmltest.u-ga.fr/item/1093957581/