deduction

In philosophy, a form of argument in which the conclusion necessarily follows from the premises. It would be inconsistent logic to accept the premises but deny the conclusion.

deduction

Monies taken away from gross pay, leaving workers with their net pay or take-home pay. Deductions are likely to include income tax and national insurance contributions. Workers may have their trade union subscription taken from their pay packet. Regular savings, such as Save-As-You-Earn (SAYE/sharesave) or schemes to buy shares in the employee's company, and payments to charity through Give-As-You-Earn schemes may also be deducted at source.