I have to admit that I was little joking about this. But I do think it is possible to specify an implementation of how a complex operation can be achieve by combining more primitive operations. With digital computers, data is usually represented by certain representation of bits. An operation is usually defined on these kind of representation. Think for example of an operation for adding two numbers in a certain representation, resulting in a result with a certain representation. In computers, two most primitive adding operations are usually adding modulo some power of 2. But with these, we can implement adding for much large numbers (also using other kinds of operations and/or intermediate storage).