Deduction在英语写作里是什么意思，请用英语解释并举例，谢谢！

deduction [di'd?k??n]
推断得出的结论; 归纳的结果
英英解释
a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket
英语用法
The Visual C++ implementation of template argument deduction conforms to the C++ Standard. For the exact rules on template argument deduction, refer to the ISO Standard.
列句
1）His deduction from the evidence was correct.
他从证据上所推测的结论是正确的。
2）Her deduction that he was now dead was correct.
她关于他已去世的推论是正确的。

deduction
Noun
1. a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket
例句： a permissible tax deduction可允许的课税减免
2. an amount or percentage deducted
例句：No deduction in pay is made for absence due to illness.因病请假不扣工资。
3. something that is inferred (deduced or entailed or implied);
例句：Your deduction is definitely unreasonable.你的推论无疑是不合理的。
His deduction led him to the correct conclusion.他的推断使他得出正确的结论。
4. reasoning from the general to the particular (or from cause to effect)
例句：logical deduction逻辑上的演绎推理
5. the act of subtracting (removing a part from the whole)
6. the act of reducing the selling price of merchandise
例句：Is there a deduction for passengers from socialist countries?来自社会主义国家的旅客买票减价吗？