@article{1183736199, author = {Pogorzelski, Witold A.}, title = {On the Scope of the Classical Deduction Theorem}, journal = {J. Symbolic Logic}, volume = {33}, number = {1}, year = {1968}, pages = { 77-81}, language = {en}, url = {http://dml.mathdoc.fr/item/1183736199} }
Pogorzelski, Witold A. On the Scope of the Classical Deduction Theorem. J. Symbolic Logic, Tome 33 (1968) no. 1, pp. 77-81. http://gdmltest.u-ga.fr/item/1183736199/