@article{MAN_1954__127_160377, author = {A. Rose}, title = {A {Formalisation} of the {2-Valued} {Propositional} {Calculus} with {Self-dual} {Primitives.}}, journal = {Mathematische Annalen}, pages = {255--257}, publisher = {mathdoc}, volume = {127}, year = {1954}, zbl = {0055.00501}, url = {http://geodesic.mathdoc.fr/item/MAN_1954__127_160377/} }