@freakazoid @enkiv2 @Azure The fact that Prolog predicates that return multiple values are completely deterministic because they execute in a strictly defined order is one of the things that makes me think that the entire concept of 'set' is wrong.

We never have sets in reality. They simply do not and cannot exist in our physical universe.

We *always* have ordered collections. There is always an ordering. Always.

If a collection isn't ordered, there's no place it can physically exist.

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@natecull @freakazoid @enkiv2 @Azure

"If a collection isn't ordered, there's no place it can physically exist."

You are confusing with .

is not about reality, it's about the structure of the concepts that the human mind use to describe its perceptions to other in a teachable and learnable way.

That's why originally meant "the art to learn".

Even if you always have equality and ordering at physical level... 1/

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