Another system of natural deduction.
Hendry, Herbert E.
Notre Dame J. Formal Logic, Tome 16 (1975) no. 1, p. 491-495 / Harvested from Project Euclid
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Publié le : 1975-10-14
Classification:  02B10 
@article{1093891884,
     author = {Hendry, Herbert E.},
     title = {Another system of natural deduction.},
     journal = {Notre Dame J. Formal Logic},
     volume = {16},
     number = {1},
     year = {1975},
     pages = { 491-495},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093891884}
}

Hendry, Herbert E. Another system of natural deduction.. Notre Dame J. Formal Logic, Tome 16 (1975) no. 1, pp.  491-495. http://gdmltest.u-ga.fr/item/1093891884/