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.
The firm also designs software that automates data documentation and management for both clinical and non-clinical information. The company was founded by Paul M. Zoll, Leigh Stein, and Thomas Claflin in 1980 and is headquartered in Chelmsford, MA.