[tlaplus] Lighthearted: TLA+ Syntax Puzzle

[Andrew Helwer <andrew.helwer@xxxxxxxxx>]

Lighthearted challenge - explain why this is valid TLA+ syntax:

---- MODULE Test ----

op == !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(1,2)

====

(can be extended ad-infinitum with 3n+2 exclamation points)

Yes I know the SANY syntax checker doesn't handle this (due to a bug arguably) and you wouldn't be able to construct a spec that passes checking at the semantic level. But still! Infinite exclamation marks!

Andrew Helwer

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