Surface reasoning.
Purdy, William C.
Notre Dame J. Formal Logic, Tome 32 (1991) no. 2, p. 13-36 / Harvested from Project Euclid
Text on Project Euclid
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Publié le : 1991-12-14
Classification:  03B65,  68S05,  92K20 
@article{1093636008,
     author = {Purdy, William C.},
     title = {Surface reasoning.},
     journal = {Notre Dame J. Formal Logic},
     volume = {32},
     number = {2},
     year = {1991},
     pages = { 13-36},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1093636008}
}

Purdy, William C. Surface reasoning.. Notre Dame J. Formal Logic, Tome 32 (1991) no. 2, pp.  13-36. http://gdmltest.u-ga.fr/item/1093636008/