Deduction, the process of reasoning in which a conclusion follows necessarily from the stated premises; inference by reasoning from the general to the specific.

由所述前提必然得出另一结论的推理过程；由一般到特殊的推理。

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The trust is one of those new donor-advised funds that allow you to take a deduction now and dribble out your contributions to specific charities over the years.

FORBES: Artful Deductions

Such funds enable givers to donate now and secure a full deduction for 2012, while pushing decisions about charitable gifts to specific causes into the future.

WSJ: Fiscal Talks Spur Charitable Giving