Xin’s Reviews > Naive Set Theory > Status Update
Xin
is 13% done
Cool. Sets are more logical than what I thought to be.
The axiom of extensionality and of specification are interesting. Axioms like the two have basically defined how sets operate.
I'm being insanely slow when reading this—and that's how mathematics works lol.
The speed is normal, but I'm going to read this tomorrow or my brain would instantly overheat lol.
— Feb 22, 2026 05:00AM
The axiom of extensionality and of specification are interesting. Axioms like the two have basically defined how sets operate.
I'm being insanely slow when reading this—and that's how mathematics works lol.
The speed is normal, but I'm going to read this tomorrow or my brain would instantly overheat lol.
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Xin’s Previous Updates
Xin
is 15% done
Cool.
A set that contains nothing is a set.
A set that contains a set that contains nothing is a set, and it is not equivalent to a set that contains nothing.
Recursive, huh? That's the most fascinating part of set theory.
It's logical, it's interesting.
Btw, thank you Paul, your book is SOOOOO GOOOD, and it helps me a lot.
— 19 hours, 25 min ago
A set that contains nothing is a set.
A set that contains a set that contains nothing is a set, and it is not equivalent to a set that contains nothing.
Recursive, huh? That's the most fascinating part of set theory.
It's logical, it's interesting.
Btw, thank you Paul, your book is SOOOOO GOOOD, and it helps me a lot.
