▼ 
Set of symbols

▼ 
Alphabet

▼ 
Deduction system

▼ 
Theory

▼ 
ZermeloFraenkel set theory

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Set

▼ 
Binary cartesian set product

▼ 
Binary relation

▼ 
Binary endorelation

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Preordering relation

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Partial ordering relation

▼ 
Ordering relation

▼ 
Ordered set

▼ 
Dedekind cut

▼ 
Set of real numbers
