Question: Is this argument valid or invalid? ( the variables represent logical statements ) - use short - cut method Q P ( R v v

Is this argument valid or invalid? (the variables represent logical statements)- use
short-cut method
QP
(RvvS)vvW
U>Q
(R??U)P
W(RvvP)(P??W)(PvvS)
Is this argument valid or invalid? ( the

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