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@article{CMJ_2008__58_1_a1, author = {Chajda, Ivan}, title = {The axioms for implication in orthologic}, journal = {Czechoslovak Mathematical Journal}, pages = {15--21}, publisher = {mathdoc}, volume = {58}, number = {1}, year = {2008}, mrnumber = {2402523}, zbl = {1174.06310}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMJ_2008__58_1_a1/} }
Chajda, Ivan. The axioms for implication in orthologic. Czechoslovak Mathematical Journal, Tome 58 (2008) no. 1, pp. 15-21. http://geodesic.mathdoc.fr/item/CMJ_2008__58_1_a1/