What Does “Equality” Mean?
Although these words are often used interchangeably and confused with one another, the concept of “equality” is very different from the concept of “equity.” The dictionary definition of “equality” encompasses concepts like “quantity” and “uniformity,” which are more precisely understood as mathematical principles rather than philosophical principles. A mathematical equation like 9 + 1 = 10 is true because the quantities on both sides of the equal sign are perfectly equal by definition. No matter how complex the equation, both sides must be equal, otherwise the equation is logically false. Thus, the equation also has uniformity as the quantity of both sides must be perfectly identical for it to represent something that is logically true. This is the essence of the principle of equality. So, we can see that equality is fundamentally about counting and measuring things to achieve perfect uniformity.
See this answer in its broader, original context in How Should Economic Value be Distributed?
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