Add Yahoo as a preferred source to see more of our stories on Google. For some mental processes, humans and animals likely follow similar lines of thinking. Catherine Falls Commercial/Moment via Getty ...

A formal logical system rests on foundational truths, known as axioms, which are so self-evident they require no proof. It then uses rules of inference to deduce further true assertions.

Many attempts to develop artificial intelligence are powered by powerful systems of mathematical logic. They tend to produce results that make logical sense to a computer program — but the result is ...