This paper gives an overview of the Maude 2.0 system. We emphasize the full generality with which rewriting logic and membership equational logic are supported, operational semantics issues, the new built-in modules, the more general Full Maude module algebra, the new META-LEVEL module, the LTL model checker, and new implementation techniques yielding substantial performance improvements in rewriting modulo. We also comment on Maude's formal tool environment and on applications.
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