[tlaplus] Understanding CHOOSE

[Park Lay <younesagma@xxxxxxxxx>]

Hello,

I am new to TLA+ and I'm trying to understand the how does the keyword CHOOSE work in TLA+. I have already read the available documentation but I don't think I fully grasp how it works.

I have this in my module :

CHOOSE sub \in ClaimsData : TRUE such that ClaimsData <- {0..10}

Can you please help me understand what really is happening here ? What I'm trying to achieve is to pick a "random" value... but I know that this is not non-deterministic.. I'm really confused..

Thank you!

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