Generalities may spur the imagination, but to use _. we would need a detailed spec for what every verb would do given indeterminate input.  Where would it appear in the collating sequence?

If _. doesn't match _., how would I find the number and location of _. values in an array?

The fact that Roger didn't find a way to integrate _. into the language should put us all on warning that the problem is very hard.

Henry Rich

On 2/8/2022 2:55 PM, Hauke Rehr wrote:
As long as it’s represented by different float values, that is.
It shouldn’t have been a float to start with in my opinion.
And I’d say
   _. -: _.
_.
in keeping with what I had been writing before.

Am 08.02.22 um 20:52 schrieb Raul Miller:
On Tue, Feb 8, 2022 at 2:43 PM Hauke Rehr <hauke.r...@uni-jena.de> wrote:
To be honest, I’m a bit confused by the stated difficulty.

The mathematical properties of _. (or, generally speaking,
indeterminate values) are rather confusing:

Since _. is not necessarily equal to _. it's difficult to reason about
arrays which contain this "value".




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