remove aliases for N < 4

Author: borisdevos

src/TensorKitSectors.jl

@@ -21,7 +21,7 @@ export triangle_equation, pentagon_equation, hexagon_equation
 export Trivial
 export Z2Irrep, Z3Irrep, Z4Irrep, ZNIrrep, LargeZNIrrep, U1Irrep
 export D3Irrep, D4Irrep, DNIrrep, CU1Irrep
-export ANIrrep, A2Irrep, A3Irrep, A4Irrep
+export ANIrrep, A4Irrep
 export SU2Irrep
 export ZNElement, Z2Element, Z3Element, Z4Element
 export ProductSector, TimeReversed
@@ -36,7 +36,7 @@ export charge, modulus
 # ---------------
 export ⊠, ⊗, ×
 export Cyclic, ℤ, ℤ₂, ℤ₃, ℤ₄, U₁, SU, SU₂, Dihedral, D₃, D₄, CU₁
-export Alternating, A₂, A₃, A₄
+export Alternating, A₄
 export fℤ₂, fU₁, fSU₂
 
 # public

src/groups.jl

@@ -80,8 +80,6 @@ const ℤ₃ = ℤ{3}
 const ℤ₄ = ℤ{4}
 const D₃ = Dihedral{3}
 const D₄ = Dihedral{4}
-const A₂ = Alternating{2}
-const A₃ = Alternating{3}
 const A₄ = Alternating{4}
 const SU₂ = SU{2}
 
@@ -91,8 +89,6 @@ type_repr(::Type{ℤ₄}) = "ℤ₄"
 type_repr(::Type{ℤ{N}}) where {N} = "ℤ{$N}"
 type_repr(::Type{D₃}) = "D₃"
 type_repr(::Type{D₄}) = "D₄"
-type_repr(::Type{A₂}) = "A₂"
-type_repr(::Type{A₃}) = "A₃"
 type_repr(::Type{A₄}) = "A₄"
 type_repr(::Type{SU₂}) = "SU₂"
 type_repr(::Type{U₁}) = "U₁"

src/irreps/anirrep.jl

@@ -52,8 +52,6 @@ Base.convert(::Type{ANIrrep{N}}, n::Integer) where {N} = ANIrrep{N}(n)
 
 Base.getindex(::IrrepTable, ::Type{Alternating{N}}) where {N} = ANIrrep{N}
 
-const A2Irrep = ANIrrep{2} # trivial
-const A3Irrep = ANIrrep{3} # Z3
 const A4Irrep = ANIrrep{4}
 
 function Base.show(io::IO, a::ANIrrep)