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*From*: Hillel Wayne <hwayne@xxxxxxxxx>*Date*: Fri, 10 Nov 2023 16:41:51 -0600*References*: <a9174435-acc5-43a7-9ec9-83fdbba308f4n@googlegroups.com>*User-agent*: Mozilla Thunderbird

If the order doesn't matter, could you instead use a bag?
Then all three of your sequences would map to the same value `(1
:> 1 @@ 2 :> 1 @@ 3 :> 1)`. If you needed to
convert it back to a sequence, you could use FoldFunction
with `Append `to pick an arbitrary sequence
representation of the bag.

H

On 11/10/2023 12:46 PM, J.D. Meadows
wrote:

--Let's say that I have a set of integers, and I totally need them to be numbers and not model values so that they are comparable and I can perform arithmetic. Eg.:

Vals == 1..5

Tuples = Vals \X Vals \X Valswith (t \in Tuples){...}

But then in my particular problem I know that <<1,2,3>> is equivalent to <<3,1,2>> and <<2,3,1>>. Is there some way of filtering Tuples so that I can avoid exploring the two latter equivalent cases? Ideally the solution should scale to long sequences, not just 3 elements.

It would be nice if I could define a set of symmetric values in the model overview form.Or if I could define an external generator coded in Java that I could plug in into the spec. That way I could keep track of already generated states in the Java code and only return non-equivalent combinations.Or maybe have TLA+ accept some external file that I could generate with a programming language of my choice.--

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**Follow-Ups**:**Re: [tlaplus] Strategies to avoid exploring symmetric combinations in non-model values?***From:*'Chris' via tlaplus

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