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# incorrect definition

The given definition is incorrect. In particular, not all variables refer to temporal processes. Further, calling a variable a placeholder does not serve to specify what a variable is, as these words are in most contexts synonymous.

Parting words from the person who closed the correction:

A very liberal attempt at defining all the senses of variable
that one is likely to encounter. I have included
the most common math definition, and added the original temporal
definition as a different sense.
Suggestions welcome.

**Status:**Accepted

Reference to the user who closed the correction.:

Reference to the article this correction is about:

Status of the article (was it accepted?):

1

Status of the article (is it closed?):

1

What kind of correction is this:

Error

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## Comments

## different definitions of "variable"

Actually, it might be a good idea to distinguish between

different senses of "variable":

(i) normal "mathematical" variables, which stand for some concrete object

e.g. x \in \real

(ii) "formal" variables used in formal polynomials and the like,

e.g. f(x) = 1 + x + x^2 + ... , where the x here is not restricted to be a a real number, complex number, etc.

(iii) "random variables" in statistics , which are really functions

on a measure space, but in practice are denoted with variable notation

(iv) state variables in computer algorithms, which are temporal.

e.g. x <- 2

Variables in mathematical logic, or formal parameters in algorithms might also fall in category (ii), but I'm not sure.

// Steve