Question: Answer with the abbreviation for the RL derivation rule (EI, EE, AI, AE, QN). Suppose (3y)(Py A Qy) is a premise in the proof, next

 Answer with the abbreviation for the RL derivation rule (EI, EE,

Answer with the abbreviation for the RL derivation rule (EI, EE, AI, AE, QN). Suppose (3y)(Py A Qy) is a premise in the proof, next suppose that Pb A Obis assumed (where b is foreign to the proof), then suppose that -(3x) Mix is derived in the subproof using the RL derivation rules, what rule would allow you to derive -(3x) M x from (3y)(Py A Qy) and subproof ending in -(3x) Mx

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