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.
In August 1977, the company opened their first international office in Japan, called ASCII Microsoft. In 1981, the company incorporated in the state of Washington and became Microsoft Inc. Bill Gates was the President of the Company and the Chairman of the Board, and Paul Allen was the Executive VP.