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Preprint in the OpenAI Math release

A negative solution to the finite lattice representation problem

OpenAI

Abstract

We give a negative solution to the finite lattice representation problem. We prove that there is a finite nonempty lattice that is not the full congruence lattice of any finite nonempty algebra of any finite signature.

open until 1 Jan 2028

est. 50% chance this result is independently verified by the end of 2027.

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