@article{1093870224, author = {Wilson, N. L.}, title = {The transitivity of implication in tree logic.}, journal = {Notre Dame J. Formal Logic}, volume = {24}, number = {1}, year = {1983}, pages = { 106-114}, language = {en}, url = {http://dml.mathdoc.fr/item/1093870224} }
Wilson, N. L. The transitivity of implication in tree logic.. Notre Dame J. Formal Logic, Tome 24 (1983) no. 1, pp. 106-114. http://gdmltest.u-ga.fr/item/1093870224/