Having had his breakthrough performance with Liviu Ciulei's " Tertium non datur " ).
2.
Summarizing briefly, stimulated by Einstein's works and quantum theory, Lupasco founded a new logic, questioning the " tertium non datur " principle of classical logic.
3.
Vasile Voiculescu's 1947 short story " Capul de zimbru " and Lucian Pintilie's 2006 film " Tertium non datur " both feature the Bull's Head stamp as one of their themes.
4.
Ackermann was born in Herscheid municipality, Germany, and was awarded a Ph . D . by the University of G�ttingen in 1925 for his thesis " Begr�ndung des " tertium non datur " mittels der Hilbertschen Theorie der Widerspruchsfreiheit ", which was a consistency proof of arithmetic apparently without full Burgsteinfurt, and then at L�denscheid until 1961.
5.
The rest is a defense of ( a ) what we now call the principle of contradiction, the principle that it is not possible for the same proposition to be ( the case ) and not to be ( the case ), and ( b ) what we now call the principle of excluded middle : " tertium non datur " there cannot be an intermediary between contradictory statements.