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.
Established in 1964, the International Trade Centre (ITC) is the joint agency of the World Trade Organization and the United Nations. ITC Mission ITC's mission is to foster inclusive and sustainable economic development, and contribute to achieving the United Nations Global Goals for Sustainable Development.