▼	Set of symbols
▼	Alphabet
▼	Deduction system
▼	Theory
▼	Zermelo-Fraenkel set theory
▼	Set
▼	Binary cartesian set product
▼	Binary relation
▼	Map
▼	Operation
▼	N-operation
▼	Binary operation
▼	Enclosed binary operation
▼	Groupoid
▼	Groupoid homomorphism
▼	Semigroup homomorphism
▼	Monoid homomorphism
▼	Group homomorphism
▼	Group isomorphism

Conventions · Comments · Examples · Expositions · Glossary · Lores · Quotes · Remarks · Techniques