The aim of the first volume of the present Handbook of Philosophical
Logic is essentially two-fold: First of all, the chapters in this volume
should provide a concise overview of the main parts of classical logic.
Second, these chapters are intended to present all the relevant
background material necessary for the understanding of the contributions
which are to follow in the next three volumes. We have thought it to be
of importance that the connections between classical logic and its
'extensions' (covered in Volume 11) as well as its most important
'alternatives' (covered in Volume Ill) be brought out clearly from the
start. The first chapter presents a clear and detailed picture of the
range of what is generally taken to be the standard logical framework,
namely, predicate (or first-order quantificational) logic. On the one
hand, this chapter surveys both propositionai logic and first-order
predicate logic and, on the other hand, presents the main metalogical
results obtained for them. Chapter 1. 1 also contains a discussion of
the limits of first-order logic, i. e. it presents an answer to the
question: Why has predicate logic played such a formidable role in the
formalization of mathematics and in the many areas of philo- sophical
and linguistic applications? Chapter 1. 1 is prerequisite for just about
all the other chapters in the entire Handbook, while the other chapters
in Volume I provide more detailed discussions of material developed or
hinted at in the first chapter.