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F. Kutschera (1968)
Die Vollständigkeit des Operatorensystems {¬, ∨, ⊃} für die Intuitionistische Aussagenlogik im Rahmen der GentzensematikArchiv für mathematische Logik und Grundlagenforschung, 11
G. Gentzen (1935)
Untersuchungen über das logische Schließen. IMathematische Zeitschrift, 39
W. Ackermann (1950)
Widerspruchsfreier Aufbau der Logik. Typenfreies System ohne tertium non daturJournal of Symbolic Logic, 15
W. Ackermann (1950)
Widerspruchsfreier Aufbau der Logik IJournal of Symbolic Logic, 15
Archive for Mathematical Logic – Springer Journals
Published: Jul 5, 2005
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