Funs names in Erlang 17 -


Erlang 17 was released. And according to this:

Fun now can be named

No examples given.

Any idea how to assign a name to fun in 17?

Which Armstrong explains about it with an example 

  1 & gt; F = Funny F (0) - & gt; 1; F (n) - & gt; N * F (N-1) End # Fun   
 You must first pass an anonymous recursive call to the function as an ARG (think of Y-coordinator).  
  1> F = Funny (F, 0) - & gt; 1; (F, N) - & gt; N * F (F, N-1) End # Fun

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