This book celebrates and expands on J. Michael Dunn's work on informational interpretations of
logic. Dunn in his Ph.D. thesis (1966) introduced a semantics for first-degree entailments
utilizing the idea that a sentence can provide positive or negative information about a topic
possibly supplying both or neither. He later published a related interpretation of the logic
R-mingle which turned out to be one of the first relational semantics for a relevance logic.
An incompatibility relation between information states lends itself to a definition of negation
and it has figured into Dunn's comprehensive investigations into representations of various
negations. The informational view of semantics is also a prominent theme in Dunn's research on
other logics such as quantum logic and linear logic and led to the encompassing theory of
generalized Galois logics (or gaggles). Dunn's latest work addresses informational
interpretations of the ternary accessibility relation and the very nature of information. The
book opens with Dunn's autobiography followed by a list of his publications. It then presents
a series of papers written by respected logicians working on different aspects of
information-based logics. The topics covered include the logic R-mingle which was introduced
by Dunn and its applications in mathematical reasoning as well as its importance in obtaining
results for other relevance logics. There are also interpretations of the accessibility
relation in the semantics of relevance and other non-classical logics using different notions
of information. It also presents a collection of papers that develop semantics for various
logics including certain modal and many-valued logics.The publication of this book is well
timed since we are living in an information age. Providing new technical findings
intellectual history and careful expositions of intriguing ideas it appeals to a wide audience
of scholars and researchers.
