Abstract interfaces for mathematical structures for Coq

 This library provides abstract interfaces for mathematical
 structures for Coq, such as:
 - algebraic hierarchy (groups, rings, fields, ...)
 - relations, orders, ...
 - Categories, functors, universal algebra, ...
 - Numbers: N, Z, Q, ...
 - Operations (shift, power, abs, ...).
 .
 Coq is a proof assistant for higher-order logic.