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[tlaplus] Re: problem defining a set

UNION {{ a + b : b \in 0..a}: a \in 0..2}

On Tuesday, October 4, 2022 at 6:41:54 AM UTC-7 jack malkovick wrote:
Hello. I'm trying to define a set like this

{ a + b : a \in 0..2, b \in 0..a }

I know it's wrong, because a in b \in 0..a is unknown, but how could I do it in another way?

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