- IsFrobenius
- IsFTGeometry
- IsFuchsianOperator
- IsFullyNondegenerate
- IsFundamental
- IsFundamentalDiscriminant
- IsGamma0
- IsGamma1
- IsGE
- IsGe
- IsGeneralizedCartanMatrix
- IsGeneralizedCharacter
- IsGenuineWeightedDynkinDiagram
- IsGenus
- IsGenusOneModel
- IsGeometricallyHyperelliptic
- IsGL2Equivalent
- IsGL2EquivalentExtended
- IsGLattice
- IsGLConjugate
- IsGlobal
- IsGloballySplit
- IsGlobalUnit
- IsGlobalUnitWithPreimage
- IsGLQConjugate
- IsGLZConjugate
- IsGood
- IsGorenstein
- IsGorensteinSurface
- IsGraded
- IsGradedIsomorphic
- IsGraph
- IsGroebner
- IsHadamard
- IsHadamardEquivalent
- IsHeckeAlgebra
- IsHeckeOperator
- IsHenselLiftable
- IsHereditary
- IsHermitianSelfDual
- IsHermitianSelfOrthogonal
- IsHomeomorphic
- IsHomogeneous
- IsHomomorphism
- IsHomomorphism(G, H, Q) : GrpMat, GrpMat, SeqEnum[GrpMatElt] -> Bool, Map
- IsHomomorphism(G, H, L) : GrpPC, GrpPC, SeqEnum -> BoolElt, Map
- IsHomomorphism(G, H, Q) : GrpPerm, GrpPerm, SeqEnum[GrpPermElt] -> Bool, Map
- IsHomotopism
- IsHyperbolic
- IsHyperelementary
- IsHyperelliptic
V2.28, 13 July 2023