But the problem with the meme is orecisely the ambiguity of whether or not x belongs to the set {a, b, c,…,z} due to x’s universal use as “the” variable.
It is not ambiguous. The set {a, b, c,…z} contains every letter. “x” being a popular choice to use as a variable in general does not confer to it any other special significance that would exclude it from the set of alphabetically arranged letters
But the problem with the meme is orecisely the ambiguity of whether or not x belongs to the set {a, b, c,…,z} due to x’s universal use as “the” variable.
It is not ambiguous. The set {a, b, c,…z} contains every letter. “x” being a popular choice to use as a variable in general does not confer to it any other special significance that would exclude it from the set of alphabetically arranged letters