LOGIC IN COMPUTER SCIENCE Modelling and Reasoning about Systems
英文原版
Preface to the second edition
Our motivation for (re)writing this book
One of the leitmotifs of writing the first edition of our book was the observation
that most logics used in the design, specification and verification of
computersystems fundamentally deal with a satisfaction relation
M φ
where M is some sort of situation or model of a system, and φ is a specification,
a formula of that logic, expressing what should be true in situation
M. At the heart of this set-up is that one can often specify and implement
algorithms for computing . We developed this theme forpr opositional,
first-order, temporal, modal, and program logics. Based on the encouraging
feedback received from five continents we are pleased to hereby present
the second edition of this text which means to preserve and improve on the
original intent of the first edition.
What’s new and what’s gone
Chapter1 now discusses the design, correctness, and complexity of a SAT
solver (a marking algorithm similar to St˚almarck’s method [SS90]) for full
propositional logic.
Chapter 2 now contains basic results from model theory (Compactness
Theorem and L¨owenheim–Skolem Theorem); a section on the transitive closure
and the expressiveness of existential and universal second-order logic;
and a section on the use of the object modelling language Alloy and its analyserforsp
ecifying and exploring under-specified first-orderlogic models with
respect to properties written in first-order logic with transitive closure. The
Alloy language is executable which makes such exploration interactive and
formal.
Chapter 3 has been completely restructured. It now begins with a discussion
of linear-time temporal logic; features the open-source NuSMV modelchecking
tool throughout; and includes a discussion on planning problems,
more material on the expressiveness of temporal logics, and new modelling
examples.
Chapter 4 contains more material on total correctness proofs and a new
section on the programming-by-contract paradig
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