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[tlaplus] What operators are defined in TLA+ BUILTINS?

From: Andrew Helwer <andrew.helwer@xxxxxxxxx>
Date: Wed, 21 Apr 2021 08:56:07 -0700 (PDT)

The operator TRUE, for example, is not part of the language spec. However if you try to define it:

TRUE == 5

You get a parser error saying it is already defined in module --TLA+ BUILTINS--. What other operators are defined in this module?

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