Similar to 対称関係

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List of alternative set theories

Set theory

Non-well-founded set theory

Template:Set theory

Extension (semantics)

Intension

Set (mathematics)

Aronszajn tree

Hereditarily finite set

Euler diagram

Ω-logic

Interesting number paradox

Enumeration

Support (mathematics)

Cantor set

Cantor's diagonal argument

Cantor's theorem

Cardinal number