Question: Suppose that in a binary programming model for project selections, there are a total of five projects available for selection. Write the following constraint in

Suppose that in a binary programming model for project selections, there are a total of five projects available for selection. Write the following constraint in the standard form:

"If projects 1 and 3 are selected, then project 4 cannot be selected."

Suppose that in a binary programming model for project selections, there are a total of five projects available for selection. Write the following constraint in the standard form:

"If projects 1 and 3 are selected, then project 4 cannot be selected."

X₄ X₁ + X₃

X₁ + X₃ + X₄ 2

X₁ + X₃ - X₄ 3

X₄ X₁ + X₃

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