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3 posts tagged "Set Theory"

Mathematics

Zorn's Lemma and the Axiom of Choice: The Most Controversial Axiom

We explore the Axiom of Choice, its equivalence with Zorn's Lemma and the Well-Ordering Principle, the controversies surrounding it, and its indispensable role throughout modern mathematics.

Set TheoryFoundations
Mathematics

The Banach-Tarski Paradox: Doubling a Sphere with Pure Mathematics

We explain the Banach-Tarski paradox — how a solid ball in three-dimensional space can be decomposed into finitely many pieces and reassembled into two balls identical to the original — and explore the role of the Axiom of Choice.

Set TheoryGeometry
Mathematics

Cantor's Diagonal Argument: Why Some Infinities Are Bigger

We present Cantor's diagonal argument proving that the real numbers are uncountable, explore its consequences for set theory, and examine how it forever changed our understanding of infinity.

Set TheoryFoundations

Abdelouahab Mostafa

Notes, articles, and research-oriented writing in mathematics from Mila, Algeria.

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