Oleg Kobchenko wrote:
> Realizing that "to be" is not the only copulative verb,
> the two "assignment" primitives could be given different names,
> for example:
>   =:  Is
>   =.  Seems

"Seems" carries a connotation of possible unreality (that is, 
appearance but not necessarily substance).  Perhaps "becomes" might be 
closer to the intent: 

   a =. b   -->  the value of a becomes what the value of b is

Then again, to retain the "is" character of the primitive, perhaps the 
"Is" name could be prefixed:

   gIs (or gis)  -->  pronounced "giz" for "global is"
   lIs (or lis)  -->  pronounced "liz" for "local is"

Or another approach might be that "global" conceptually encompasses 
more ("plural") than "local":

   =:  Are
   =.  Is

FWIW.

Harvey

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