Aleph is a multi-threaded functional programming language with dynamic symbol bindings that support the object oriented paradigm. Aleph features a state of the art runtime engine that supports both 32 and 64 bits platforms. Aleph comes with a rich set of libraries that are designed to be platform independent. The Aleph engine is written in C++ and provides runtime compatibility with it. Such compatibility includes the ability to instantiate C++ classes, use virtual methods and raise or catch exceptions. A comprehensive API has been designed to ease the integration of foreign libraries. - Builtin objects - Functional programming - Object oriented - Multi-threaded engine - condition objects.