  The questions which we will consider here are "What is AI?" and "How can we
make AI?". Here we will present the definition of AI in terms of multi-agent
systems. This means that here you will not find a new answer to the question
"What is AI?", but an old answer in a new form.
  This new form of the definition of AI is of interest for the theory of
multi-agent systems because it gives us better understanding of this theory.
More important is that this work will help us answer the second question. We
want to make a program which is capable of constructing a model of its
environment. Every multi-agent model is equivalent to a single-agent model but
multi-agent models are more natural and accordingly more easily discoverable.
