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*From*: marta zhango <martazhango@xxxxxxxxx>*Date*: Thu, 25 Apr 2024 16:53:34 -0700 (PDT)*References*: <07aaecb6-6368-4ffb-b7ca-5579d656a625n@googlegroups.com> <882fb42f-40d7-4ad4-980e-a23a55261fddn@googlegroups.com>

Have thought something like this too

Cardinality(set) == (+ e \in DOMAIN set: IF set[e] THEN 1 ELSE 0)

On Friday, April 26, 2024 at 9:17:00 AM UTC+12 marta zhango wrote:

Like this for instance ?Cardinality (S) = |S| == Count ( e \in S )On Friday, April 26, 2024 at 8:36:13 AM UTC+12 marta zhango wrote:How can I define the cardinality of a set as the number of elements in a set Susing the notation |S| using TLA.

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**Follow-Ups**:**Re: [tlaplus] Defining Cardinality with TLA***From:*Markus Kuppe

**References**:**[tlaplus] Defining Cardinality with TLA***From:*marta zhango

**[tlaplus] Re: Defining Cardinality with TLA***From:*marta zhango

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