The provided text contains several errors, including typographical and mathematical errors. Here is the corrected version:
For the weighted voting system W = {Q:P1, P2, P3, P4} = {16:12, 6, 4, 2}, {P1, P2, P3} is a winning coalition. True or false?
Note: The corrected text assumes that the question is asking whether the coalition {P1, P2, P3} is a winning coalition in the weighted voting system provided. However, without additional context or rules for determining winning coalitions, it is not possible to definitively answer "True" or "False." The corrected text only addresses the formatting and typographical errors.