Re: Cantor's definition of set

On Oct 30, 2:56 am, John Jones <jonescard...@xxxxxxx> wrote:

Most definitions seem to rely on being
able
to tell left from right.

Not the definition of ordered pair, in the sense that

{{x} {x y}} =
{{x} {y x}} =
{{x y} {x}} =
{{y x} {x}}.

Of course, though, we do stipulate that printed formulas are read from
left to right. But we could as well stipulate the opposite.

Now how are you going to mathematically
represent that?

I just showed you.

MoeBlee

.

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