Question: Suppose we have 6 projects. Let Yi be binary variables set to 1 if project i is invested in, and the interactions are as follows:

Suppose we have 6 projects. Let Yi be binary variables set to 1 if project i is invested in, and the interactions are as follows: Project 3 can only be done if project 2 is also done We must invest in at least one of the first three projects Only one of projects 2, 4 and 6 can be done Exactly two of the last four projects must be invested in, but we do not care which ones

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