I like L: a lot. You can do neat things:

   ! L: 0 (<0 1 2),<2 4;3 5 7
┌─────┬─────────────────┐
│1 1 2│┌────┬──────────┐│
│     ││2 24│6 120 5040││
│     │└────┴──────────┘│
└─────┴─────────────────┘


> On Dec 16, 2023, at 09:09, Henry Rich <henryhr...@gmail.com> wrote:
> 
> 'prefix' ,L:0 names
> 
> Untested.
> 
> Henry Rich
> 

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