assertLevel -- controls whether constructors check for well-definedness

This global variable controls whether the makeCpMackeyFunctor and map(CpMackeyFunctor,CpMackeyFunctor,Matrix,Matrix) methods check whether the input data yields a well-defined object. If assertLevel is set to 0 or lower, then no checks are made, and the methods will return a Mackey functor or homomorphism (which may be malformed) regardless of the input data. If assertLevel is set to 1 or higher, then the methods will check whether the input data yields a well-defined Mackey functor or homomorphism, and if not, they will throw an error.

The default value is 1.