IIRC ancient J had 'given name' that can be assigned once and can not
be changed afterwards.
On Wed, 19 Nov 2008, Raul Miller wrote:
> Food for thought (this would be a breaking change in J if fully implemented)
>
> In addition to the local/global distinction for names (where we currently get
> a domain error if we try and update a global name when we have a local
> value for that name), another distinction is the "first time" vs. "update"
> mechanism.
>
--
regards,
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