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- A Note on the “Smith is Huq” ConditionPublication . Martins-Ferreira, Nelson; Van der Linden, TimWe show that two known conditions which arose naturally in commutator theory and in the theory of internal crossed modules coincide: every starmultiplicative graph is multiplicative if and only if every two ef fective equivalence relations commute as soon as their normalisations do. This answers a question asked by George Janelidze.