Is it a list ?

Marc Ernst Eddy van Woerkom Marc.Vanwoerkom@REDACTED
Thu Jul 10 20:08:22 CEST 2003

>   Conjecture: I assume you meant to write [1, 2], which will give a 
>   well-formed list of the two numbers 1 and 2 :-)

Or [1|[2]] .. 

But why is is_list([1|2]) true?

Or asked differently, is there a legitimate use for ill-formed lists?


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