This process is called conceptual synthesis, the possibility of which is a sine qua non for the exchange of information by speech and writing.
The conferences were opened at the close of July in the camp of the grand vizier, who was pressing Belgrade hard and demanded the surrender of the city as a sine qua non.
The improvement of the telescope was justly regarded as a sine qua non for the advancement of astronomical knowledge.
The only two points on which he departed from the orthodox Lutheran faith of his day were the requirement of regeneration as the sine qua non of the true theologian, and the expectation of the conversion of the Jews and the fall of Papacy as the prelude of the triumph of the church.
An intimate collaboration with England and France was a conditio sine qua non for Czechoslovakia.