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"path": "/t/lawvere-theories/13944#post_7",
"publishedAt": "2026-04-18T02:46:34.000Z",
"site": "https://discourse.haskell.org",
"textContent": "No, especially because\n\n\n type Stuck :: Peano\n type family Stuck where\n\n\nThis is an irreducible type family, but it’s still technically valid. It also is not an instance of Prop.",
"title": "Lawvere theories"
}