Mixing nouns and verbs in a gerund via ` can be accomplished by boxing the
open nouns, for example,

   (<0)`#`(<1 2)`$
+-+-+---+-+
|0|#|1 2|$|
+-+-+---+-+

Currently, mixing open nouns with verbs causes an error,

   0`#`(1 2)`$
|domain error
|       0`#`(1 2)`$

This suggests that an implicit box-if-open, in these conditions, would make
easier to type and to read this kind of expressions.  Would that work (am I
missing something)?





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