---
tag: Q7T9BVRWN3
kind: problem
name: Problem 2 (Dobbertin 1983)
sources:
  - wikipedia: en:9755564@r1364856992
    locator: Congruence lattice problem, section Schmidt's approach via distributive join-homomorphisms
    note: adopted
    mention: wikipedia://en/9755564#KMLU
    sections: [Problem]
inventory: [X5242RPT4D]
---

## Problem

**Problem 2 (Dobbertin 1983).** Is every conical refinement monoid measurable?

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