This can be proven for any valid argument form using a truth table which shows that there is no situation in which there are all true premises and a false conclusion.
Founded in 1994, IntraLearn Software Corporation (ISC) is a pioneer of creating e-Learning and Knowledge Organization products for corporate enterprises, academic institutions, associations, government agencies and training suppliers.
Bic was founded by Marcel Bich in 1945. He and his partner, Edouard Buffard began manufacturing pens and pencils in France. In 1958, the company moved into the United States with the purchase of the Waterman Pen Company, based in Connecticut.