Put a forward reference in the introduction I'm currently writing a paper and in the introduction I have something in this vein :


  [...] Algorithms of this type have the following characteristics (we
  discuss this in Section 6). [...] The paper is structured as follows
  [...] In Section 6, we [...]


I was wondering, is it okay to put a forward reference like this, even before describing what Section 6 is about in the outline at the end of the introduction (In Section 6, we [...])? Or is it considered bad practice?
While these forward references are not "sexy", they help to understand the structure of our argumentation that follows. As usual, it depends on the reader if he likes it.
Be sure that your flow is a a logical sequence of (short) arguments even in this abstraction.