TLA+ = formal language for modeling software above the code level and hardware above the circuit level by Leslie Lamport (of vector clock and Paxos fame, among other things.)

https://lamport.azurewebsites.net/tla/tla.html

• mike_hock

  today at 5:23 PM

  So there's \in, \subseteq and probably many others that are written just like in Latex. Notably \cap and \cup were also copied from Latex, which describe the shape of the symbol instead of its meaning. But not \to, \mapsto, \Vee and \Wedge, they're written as ASCII art ->, |->, \/ and /\.

  Then there's SUBSET, which means power set ... yeah. -_-

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