Containers is a reimplementation of the FSets/FMaps library from the
standard library, using typeclasses.
Homepage: http://coq.inria.fr/pylons/pylons/contribs/view/Containers/v8.4
The Mathematical Components (mathcomp) contains advanced theory files
covering a wide spectrum of mathematics.
Homepage: http://ssr.msr-inria.inria.fr/
Ssreflect is a proof language (plugin for Coq) and a small set of core
theory libraries about boolean, natural numbers, sequences, decidable
equality and finite types.
Homepage: http://ssr.msr-inria.inria.fr/
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