Similar to 対角線共通部分

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Forcing (mathematics)

Axiom of empty set

Effective descriptive set theory

Well-founded relation

Symmetric difference

Nonrecursive ordinal

Product order

Constant function

Fiber (mathematics)

Fuzzy set

Critical point (set theory)

Set theory

Template:Set theory

Extension (semantics)

Intension

Set (mathematics)

Aronszajn tree

Hereditarily finite set

Universe (mathematics)

Ω-logic

Interesting number paradox

Enumeration

Support (mathematics)

Connected relation