Definition:Subtraction/Difference

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Definition

Let $a - b$ denote the operation of subtraction on two objects $a$ and $b$.

Then the result $a - b$ is referred to as the difference of $a$ and $b$.


Note that the nature of $a$ and $b$ has deliberately been left unspecified.

They could be, for example, numbers, matrices or more complex expressions constructed from such elements.


Sources