I have a more general question to ask:
about using the ⋯ symbol.
As far as I have heard three dots will represent that it continues up to infinity.
And I have found (mostly in computer programming) that two dots will be used in a case to indicate the terms between two specific points.
So my question is what is suitable to write in a case where finite number of terms are used.
For example Consider the set with n number of elements. Let them be
x1,x2,⋅⋅xn two dots. Or is it x1,x2,⋯xn?
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