Logic is simply the study of the rules
for valid inference. That is to say, how
can you move from premises to a
conclusion validly? What is logically
implied by those premises? And in fact
there are really only about nine rules
of inference that govern all human
reason, and these are easy to memorize
and to apply. They can help you to
construct valid arguments yourself
rather than having logical leaps in your
argument, and it can also help you to
spot the logical fallacies in the
objections of some person who is
opposing Christianity by analyzing his
argument to see if it follows the rules
of inference. You can often discover that
in fact his argument is invalid, that it
violates these rules of inference. So I
would encourage every Christian to at
least study and memorize these nine
basic rules of inference for valid
reasoning.
you
