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A funny insight about Platonism (if it's not funny, treat this as a bad joke)

I think aka "∅" therefore I know I thought aka "{∅}" therefore I know I knew I have thought aka "{{∅}}"

and ...

boom! The entire Math system is imported. (BTW, limitations known as "computation theory" is also introduced)

So maybe we are actually mathematical being on a manifold named as "real world". To me it is more concise and profound than "philosophy". As we are real, so do all mathematical objects.

The working mathematician is a Platonist on weekdays, a formalist on weekends.

Reuben Hersh

I'm not real. I'm not sure about you.

Found the co-solipsist.

The problem is: do numbers exist? One group says, they don't. Another say, they do exist in the Platonic world, but this Platonic world is accessible from the world we inhabit in. Next time, look at the folks who looks for Platonic love:)