Re: Rather simple list/set operation [?]

On 6/7/2024 1:56 AM, B. Pym wrote:

 From: Drew Krause
Subject: rather simple list/set operation
Date: Tue, 3 Jan 2012 19:01:19 -0600
  Drew Krause wrote:
 

Maybe someone can help me with this?
>
I start with a list, e.g.
>
((0) (1 3) (1 2) (4 6) (5 7) (7 8))
>
>
and want all members of intersecting lists to appear in the same sublist:
>
=> ((0) (1 2 3) (4 6) (5 7 8))

I think the problem definition is ambiguous and not clarified by the example. Consider the following input lists:
((0 1) (1 2) (2 3)),
((0 1) (0 2) (0 3)).
Any idea what Krause had in mind?
--
Jeff Barnett