[tlaplus] How to explore states with all subset of a set ?

["thisismy...@xxxxxxxxx" <thisismyidashish@xxxxxxxxx>]

Hi

I have a set `Files`. I want TLC to explore next steps of my `process` with all subset combinations of `Files`.

E.g.

process DeleteX \in DeleteWorkers

process DeleteOp:

someFiles := CHOOSE x \in SUBSET {p \in Files: p.size < TargetSize}: TRUE;

await Cardinatlity(someFiles) > 0;

... next steps ...

end process;

But i see that next steps are disabled with Total/Distinct states as 0/0.

I think it is because CHOOSE always takes `{}`.

How can i tell TLC to explore all `someFiles` where it is a subset of `Files with my predicate` applied ?

Thanks

Ashish

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