Electrum

Aliases: —

Provenance: commit 0f36f2c279 · authored 2026-02-12T13:09:28+01:00 · agent claude-code · model sonnet

1 source · not in taxonomy (canonical name didn't match any upstream)

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

module example/LightSwitch

sig Light {
  var on: set Light
}

pred flip[l: Light] {
  l in on => l not in on'
  l not in on => l in on'
}

pred init {
  no on
}

fact traces {
  init
  always some l: Light | flip[l]
}

run {} for 3 Light, 5 steps