Formulate constraints to enforce these conditions

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Reference no: EM131030786

A company has four projects, numbered 1 through 4. Let Xi = 0 if project i is not selected, and Xi = 1 if project i is selected for i = 1, 2, 3, 4. If any project is selected for implementation, each lower-numbered project must also be selected for implementation. Formulate constraints to enforce these conditions.

Reference no: EM131030786

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