Propentagonal antiprismatic symmetry

Propentagonal antiprismatic symmetry
Rank	3
Space	Spherical
Order	10

Propentagonal antiprismatic symmetry, also known as propappic symmetry and notated as (I₂(10)+×A₁)/2, is a 3D spherical symmetry group. It is the symmetry of the pentagonal antiprism if the bases are considered to have chiral pentagonal rather than full pentagonal symmetry. It is a subgroup of icosahedral symmetry.

Subgroups

• Chiral pentagonal pyramidal symmetry (maximal)
• Inversion symmetry (maximal)
• Identity symmetry

Convex polytopes with (G₂+×A₁)/2 symmetry

• Pentagonal antiprism (isogonal)/Pentagonal antitegum (isotopic)