Example image of eyePlorer eyePlorer map for 'Normal subgroup': Abstract algebra Mathematics Subgroup Group (mathematics) Quotient group Évariste Galois Inner automorphism Logical equivalence Coset Conjugacy class Group homomorphism Kernel (algebra) Union (set theory) Commutator subgroup Imperfect group Index of a subgroup Perfect group Simple group Center (group theory) Automorphism Characteristic subgroup Abelian group Hamiltonian group Euclidean group Translation (geometry) Rubik's Cube group Transitive relation Greatest element Lattice (order) Subset Complete lattice Modular lattice Homomorphism Isomorphism Isomorphism theorem Up to Domain of a function Israel Nathan Herstein Ascendant subgroup Brauer–Cartan–Hua theorem Brauer–Suzuki theorem C normal subgroup Core (group) Descendant subgroup Direct sum of groups Fitting subgroup Free-by-cyclic group Group extension Hirsch–Plotkin radical Identity component