Philosophy | Introductory Symbolic Logic
P250 | 19783 | Weiner
A deductive argument is valid just in case it is not possible for
all its premises to be true while the conclusion is false. But how
can we tell when we have exhaustively surveyed all possibilities?
It may seem that we can never be quite sure—there are too many
possibilities to check. The task of this logic course is to develop
a general technique for evaluating deductive arguments. The first
step involves the use of a formal language for expressing the
underlying logical structure of a broad range of English sentences.
The next step is to introduce a variety of techniques for evaluating
formal arguments, including truth tables and deductions. Once an
English argument is translated into the formal language, formal
techniques can be to solve the apparently informal problem with
which we began, i.e., the problem of finding out whether it is
possible for the conclusion of the argument to be false while all
its premises are true.
There will be weekly graded homework, 2 mid-term examinations and a