${\rm S}4.1.4={\rm S}4.1.2$ and ${\rm S}4.021={\rm S}4.04$.
Lenzen, Wolfgang
Notre Dame J. Formal Logic, Tome 19 (1978) no. 1, p. 465-466 / Harvested from Project Euclid
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Publié le : 1978-07-14
Classification:  03B45 
@article{1093888409,
     author = {Lenzen, Wolfgang},
     title = {${\rm S}4.1.4={\rm S}4.1.2$ and ${\rm S}4.021={\rm S}4.04$.},
     journal = {Notre Dame J. Formal Logic},
     volume = {19},
     number = {1},
     year = {1978},
     pages = { 465-466},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093888409}
}

Lenzen, Wolfgang. ${\rm S}4.1.4={\rm S}4.1.2$ and ${\rm S}4.021={\rm S}4.04$.. Notre Dame J. Formal Logic, Tome 19 (1978) no. 1, pp.  465-466. http://gdmltest.u-ga.fr/item/1093888409/