> I don't think it's illegal.  The spec (Ye Dic, here) is incomplete.  It

That is good to know.

> I don't see anything bad coming from executing a train containing
> non-verbs; so I would vote to expand the spec to include all trains.

I do not see anything bag coming either, on the contrary.

> There would need to be discussion among The Wise before any such change.

May I offer some food for thought to The Wise?

I would expect that whatever is decided regarding the legality in J about
the train's (`:6) arguments would, or should, affect its capable relative,
agenda (@.), specifically the m@.n form; for instance, do The Wise, or you,
in particular, think that the following sentences, supported by j901, are
legal or illegal in J?

   a=. (`(;:'@:-"'))(@.(4 ;~ (<0 2 1 3 1 2 0)))

   u`v a
(u@:v - v@:u)"

   _1 *:`(+/) a i. 2 3 4
  64  118  184  262
1504 1702 1912 2134





On Tue, Mar 10, 2020 at 10:09 AM Henry Rich <henryhr...@gmail.com> wrote:
>
> I don't think it's illegal.  The spec (Ye Dic, here) is incomplete.  It
> says what will be done if there is a verb train but is silent about
> other trains.
>
> What the implementation does is accept any train and evaluate it.
> Thinking about it I don't see anything else you could do with a train; &
> I don't see anything bad coming from executing a train containing
> non-verbs; so I would vote to expand the spec to include all trains.
>
> There would need to be discussion among The Wise before any such change.
>
> Henry Rich
>
> On 3/9/2020 11:36 PM, Jose Mario Quintana wrote:
> > Henry wrote:
> >
> >> Ye Dic mentions only verb trains under `: .
> > Therefore, the sentence ((<,'"') ` (an 1) (`:6)) is illegal in J
because "1
> > is not a train of verbs (even if it is supported by j).  Correct? (This
is
> > not a rhetorical question.)
> >
>
>
>
> --
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