diff --git a/src/Algorithms/A20/A20.jl b/src/Algorithms/A20/A20.jl
index b58fc3c3b..26f3cad54 100644
--- a/src/Algorithms/A20/A20.jl
+++ b/src/Algorithms/A20/A20.jl
@@ -31,7 +31,7 @@ numtype(::A20{N}) where {N} = N
 function rsetrep(::A20{N}) where {N}
     VT = Vector{N}
     MT = Matrix{N}
-    return RT = ReachSet{N,Zonotope{N,VT,MT}}
+    return ReachSet{N,Zonotope{N,VT,MT}}
 end
 
 include("post.jl")
diff --git a/src/Algorithms/ASB07/ASB07.jl b/src/Algorithms/ASB07/ASB07.jl
index 531d2eb3f..0b8c9d5ce 100644
--- a/src/Algorithms/ASB07/ASB07.jl
+++ b/src/Algorithms/ASB07/ASB07.jl
@@ -78,15 +78,15 @@ end
 step_size(alg::ASB07) = alg.δ
 numtype(::ASB07{N}) where {N} = N
 
-function rsetrep(alg::ASB07{N,AM,RM,Val{false}}) where {N,AM,RM}
-    return RT = ReachSet{N,Zonotope{N,Vector{N},Matrix{N}}}
+function rsetrep(::ASB07{N,AM,RM,Val{false}}) where {N,AM,RM}
+    return ReachSet{N,Zonotope{N,Vector{N},Matrix{N}}}
 end
 
-function rsetrep(alg::ASB07{N,AM,RM,S,R,Val{n},Val{p}}) where {N,AM,RM,S,R,n,p}
+function rsetrep(::ASB07{N,AM,RM,S,R,Val{n},Val{p}}) where {N,AM,RM,S,R,n,p}
     VT = SVector{n,N}
     MT = SMatrix{n,p,N,n * p}
     ZT = Zonotope{N,VT,MT}
-    return RT = ReachSet{N,ZT}
+    return ReachSet{N,ZT}
 end
 
 include("post.jl")
diff --git a/src/Algorithms/ASB07/reach_homog.jl b/src/Algorithms/ASB07/reach_homog.jl
index 3ef1479e8..73fa2575f 100644
--- a/src/Algorithms/ASB07/reach_homog.jl
+++ b/src/Algorithms/ASB07/reach_homog.jl
@@ -7,7 +7,7 @@ function reach_homog_ASB07!(F::Vector{ReachSet{N,Zonotope{N,VN,MN}}},
                             NSTEPS::Integer,
                             δ::N,
                             max_order::Integer,
-                            X::Universe,
+                            ::Universe,
                             recursive::Val{true},
                             reduction_method::AbstractReductionMethod,
                             Δt0::TN) where {N,TN,VN,MN}
@@ -42,7 +42,7 @@ function reach_homog_ASB07!(F::Vector{ReachSet{N,Zonotope{N,VN,MN}}},
                             NSTEPS::Integer,
                             δ::N,
                             max_order::Integer,
-                            X::Universe,
+                            ::Universe,
                             recursive::Val{false},
                             reduction_method::AbstractReductionMethod,
                             Δt0::TN) where {N,TN,VN,MN}
diff --git a/src/Algorithms/ASB07/reach_inhomog.jl b/src/Algorithms/ASB07/reach_inhomog.jl
index 25069bf46..46f47b432 100644
--- a/src/Algorithms/ASB07/reach_inhomog.jl
+++ b/src/Algorithms/ASB07/reach_inhomog.jl
@@ -5,7 +5,7 @@ function reach_inhomog_ASB07!(F::Vector{ReachSet{N,Zonotope{N,VN,MN}}},
                               NSTEPS::Integer,
                               δ::N,
                               max_order::Integer,
-                              X::Universe,
+                              ::Universe,
                               U::Zonotope,
                               recursive::Val{true},
                               reduction_method::AbstractReductionMethod,
diff --git a/src/Algorithms/BFFPSV18/BFFPSV18.jl b/src/Algorithms/BFFPSV18/BFFPSV18.jl
index e6ad2757b..90c802adb 100644
--- a/src/Algorithms/BFFPSV18/BFFPSV18.jl
+++ b/src/Algorithms/BFFPSV18/BFFPSV18.jl
@@ -117,8 +117,8 @@ function BFFPSV18(; δ::N,
                                            lazy_initial_set, lazy_input, sparse, view)
 end
 
-_concretize_setrep(setrep::Type{Interval}, N) = Interval{N}
-_concretize_setrep(setrep::Type{Hyperrectangle}, N) = Hyperrectangle{N,Vector{N},Vector{N}}
+_concretize_setrep(::Type{Interval}, N) = Interval{N}
+_concretize_setrep(::Type{Hyperrectangle}, N) = Hyperrectangle{N,Vector{N},Vector{N}}
 
 # blocks of size 1
 function _parse_opts_1D(vars, dim::Integer, partition)
diff --git a/src/Algorithms/BFFPSV18/reach_homog.jl b/src/Algorithms/BFFPSV18/reach_homog.jl
index f38f38da2..cec44ac80 100644
--- a/src/Algorithms/BFFPSV18/reach_homog.jl
+++ b/src/Algorithms/BFFPSV18/reach_homog.jl
@@ -6,7 +6,7 @@
 # Matrix operations: Dense
 # Invariant: No
 function reach_homog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::AbstractMatrix{NM}, NSTEPS, δ,
-                               X::Universe, ST::Type{<:Interval{N}}, vars, block_indices,
+                               ::Universe, ST::Type{<:Interval{N}}, vars, block_indices,
                                row_blocks, column_blocks, Δt0,
                                viewval::Val{true}) where {NM,N}
 
@@ -45,7 +45,7 @@ end
 # Matrix operations: Dense
 # Invariant: No
 function reach_homog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ::N,
-                               X::Universe, ST, vars, block_indices,
+                               ::Universe, ST, vars, block_indices,
                                row_blocks::AbstractVector{<:RBLKi},
                                column_blocks::AbstractVector{<:CBLKj},
                                Δt0,
@@ -87,7 +87,7 @@ end
 # Matrix operations: Sparse
 # Invariant: No
 function reach_homog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ::N,
-                               X::Universe, ST, vars, block_indices,
+                               ::Universe, ST, vars, block_indices,
                                row_blocks::AbstractVector{<:RBLKi},
                                column_blocks::AbstractVector{<:CBLKj},
                                Δt0,
diff --git a/src/Algorithms/BFFPSV18/reach_inhomog.jl b/src/Algorithms/BFFPSV18/reach_inhomog.jl
index feeff1b8a..5dd3fcb06 100644
--- a/src/Algorithms/BFFPSV18/reach_inhomog.jl
+++ b/src/Algorithms/BFFPSV18/reach_inhomog.jl
@@ -6,7 +6,7 @@
 # Matrix operations: Dense
 # Invariant: No
 function reach_inhomog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ,
-                                 X::Universe, U, ST::Type{<:Interval{N}}, vars, block_indices,
+                                 ::Universe, U, ST::Type{<:Interval{N}}, vars, block_indices,
                                  row_blocks::AbstractVector{<:RBLKi},
                                  column_blocks::AbstractVector{<:CBLKj},
                                  Δt0,
@@ -60,7 +60,7 @@ end
 # Matrix operations: Dense
 # Invariant: No
 function reach_inhomog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ,
-                                 X::Universe, U, ST, vars, block_indices,
+                                 ::Universe, U, ST, vars, block_indices,
                                  row_blocks::AbstractVector{<:RBLKi},
                                  column_blocks::AbstractVector{<:CBLKj},
                                  Δt0,
@@ -114,7 +114,7 @@ end
 # Matrix operations: Sparse
 # Invariant: No
 function reach_inhomog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ::N,
-                                 X::Universe, U, ST, vars, block_indices,
+                                 ::Universe, U, ST, vars, block_indices,
                                  row_blocks::AbstractVector{<:RBLKi},
                                  column_blocks::AbstractVector{<:CBLKj},
                                  Δt0,
@@ -168,7 +168,7 @@ function reach_inhomog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NST
 end
 
 function reach_inhomog_BFFPSV18!(F, Xhat0::CartesianProductArray{N}, Φ::MT, NSTEPS, δ::N,
-                                 X::Universe, U, ST, vars, block_indices,
+                                 ::Universe, U, ST, vars, block_indices,
                                  row_blocks::AbstractVector{<:RBLKi},
                                  column_blocks::AbstractVector{<:CBLKj},
                                  Δt0,
diff --git a/src/Algorithms/BOX/BOX.jl b/src/Algorithms/BOX/BOX.jl
index 98e15fb6d..b8528b6b1 100644
--- a/src/Algorithms/BOX/BOX.jl
+++ b/src/Algorithms/BOX/BOX.jl
@@ -70,17 +70,17 @@ numtype(::BOX{N}) where {N} = N
 
 function setrep(::BOX{N,AM,Val{false},D,R}) where {N,AM,D,R}
     VT = Vector{N}
-    return ST = Hyperrectangle{N,VT,VT}
+    return Hyperrectangle{N,VT,VT}
 end
 
 function rsetrep(::BOX{N,AM,Val{true},Val{n},R}) where {N,AM,n,R}
     VT = SVector{n,N}
-    return ST = Hyperrectangle{N,VT,VT}
+    return Hyperrectangle{N,VT,VT}
 end
 
 function rsetrep(alg::BOX{N}) where {N}
     ST = setrep(alg)
-    return RT = ReachSet{N,ST}
+    return ReachSet{N,ST}
 end
 
 include("post.jl")
diff --git a/src/Algorithms/BOX/reach_homog.jl b/src/Algorithms/BOX/reach_homog.jl
index c33ffd5ed..db07f4896 100644
--- a/src/Algorithms/BOX/reach_homog.jl
+++ b/src/Algorithms/BOX/reach_homog.jl
@@ -8,7 +8,7 @@ function reach_homog_BOX!(F::Vector{ReachSet{N,Hyperrectangle{N,VNC,VNR}}},
                           Φ::AbstractMatrix,
                           NSTEPS::Integer,
                           δ::N,
-                          X::Universe,
+                          ::Universe,
                           recursive::Val{false},
                           Δt0::TN) where {N,TN,VNC,VNR}
 
@@ -55,7 +55,7 @@ function reach_homog_BOX!(F::Vector{ReachSet{N,Hyperrectangle{N,VNC,VNR}}},
                           Φ::AbstractMatrix,
                           NSTEPS::Integer,
                           δ::Float64,
-                          X::Universe,
+                          ::Universe,
                           recursive::Val{true},
                           Δt0::TN) where {N,TN,VNC,VNR}
 
diff --git a/src/Algorithms/BOX/reach_inhomog.jl b/src/Algorithms/BOX/reach_inhomog.jl
index ad7d03ad1..7284fe3df 100644
--- a/src/Algorithms/BOX/reach_inhomog.jl
+++ b/src/Algorithms/BOX/reach_inhomog.jl
@@ -10,7 +10,7 @@ function reach_inhomog_BOX!(F::Vector{ReachSet{N,Hyperrectangle{N,VNC,VNR}}},
                             Φ::AbstractMatrix,
                             NSTEPS::Integer,
                             δ::N,
-                            X::Universe,
+                            ::Universe,
                             U::Hyperrectangle,
                             recursive::Val{false},
                             Δt0::TN) where {N,TN,VNC,VNR}
diff --git a/src/Algorithms/CARLIN/post.jl b/src/Algorithms/CARLIN/post.jl
index b5d6c9fb1..94b9c8e65 100644
--- a/src/Algorithms/CARLIN/post.jl
+++ b/src/Algorithms/CARLIN/post.jl
@@ -15,7 +15,7 @@ end
 
 # TODO check if it can be removed
 function _project(sol, vars)
-    return πsol_1n = Flowpipe([ReachSet(set(project(R, vars)), tspan(R)) for R in sol])
+    return Flowpipe([ReachSet(set(project(R, vars)), tspan(R)) for R in sol])
 end
 
 struct CanonicalQuadraticForm{T,MT<:AbstractMatrix{T}} <: AbstractContinuousSystem
diff --git a/src/Algorithms/GLGM06/GLGM06.jl b/src/Algorithms/GLGM06/GLGM06.jl
index e8539ab23..c0b87254b 100644
--- a/src/Algorithms/GLGM06/GLGM06.jl
+++ b/src/Algorithms/GLGM06/GLGM06.jl
@@ -98,27 +98,27 @@ end
 step_size(alg::GLGM06) = alg.δ
 numtype(::GLGM06{N}) where {N} = N
 
-@inline function setrep(alg::GLGM06{N,AM,Val{false}}) where {N,AM}
-    return ST = Zonotope{N,Vector{N},Matrix{N}}
+@inline function setrep(::GLGM06{N,AM,Val{false}}) where {N,AM}
+    return Zonotope{N,Vector{N},Matrix{N}}
 end
 
 @inline function rsetrep(alg::GLGM06{N,AM,Val{false}}) where {N,AM}
     ST = setrep(alg)
-    return RT = ReachSet{N,ST}
+    return ReachSet{N,ST}
 end
 
-@inline function setrep(alg::GLGM06{N,AM,Val{true},Val{n},Val{p}}) where {N,AM,n,p}
+@inline function setrep(::GLGM06{N,AM,Val{true},Val{n},Val{p}}) where {N,AM,n,p}
     VT = SVector{n,N}
     MT = SMatrix{n,p,N,n * p}
-    return ZT = Zonotope{N,VT,MT}
+    return Zonotope{N,VT,MT}
 end
 
 @inline function rsetrep(alg::GLGM06{N,AM,Val{true},Val{n},Val{p}}) where {N,AM,n,p}
     ZT = setrep(alg)
-    return RT = ReachSet{N,ZT}
+    return ReachSet{N,ZT}
 end
 
-@inline function rsetrep(alg::GLGM06{N,AM,Val{true},Missing,Missing}) where {N,AM}
+@inline function rsetrep(::GLGM06{N,AM,Val{true},Missing,Missing}) where {N,AM}
     throw(ArgumentError("the reach-set representation for a statically sized zonotope " *
                         "that the system's dimension argument has been defined; add `dim=...`" *
                         "to the algorithm constructor"))
diff --git a/src/Algorithms/GLGM06/reach_homog.jl b/src/Algorithms/GLGM06/reach_homog.jl
index 9fdf7fb2d..ff9124bf8 100644
--- a/src/Algorithms/GLGM06/reach_homog.jl
+++ b/src/Algorithms/GLGM06/reach_homog.jl
@@ -10,7 +10,7 @@ function reach_homog_GLGM06!(F::Vector{ReachSet{N,Zonotope{N,VN,MN}}},
                              Φ::AbstractMatrix,
                              NSTEPS::Integer,
                              δ::Float64,
-                             X::Universe,
+                             ::Universe,
                              preallocate::Val{false},
                              Δt0::TimeInterval,
                              disjointness_method::AbstractDisjointnessMethod) where {N,VN,MN}
@@ -35,7 +35,7 @@ function reach_homog_GLGM06!(F::Vector{ReachSet{N,Zonotope{N,Vector{N},Matrix{N}
                              Φ::AbstractMatrix,
                              NSTEPS::Integer,
                              δ::Float64,
-                             X::Universe,
+                             ::Universe,
                              preallocate::Val{true},
                              Δt0::TimeInterval,
                              disjointness_method::AbstractDisjointnessMethod) where {N}
diff --git a/src/Algorithms/GLGM06/reach_inhomog.jl b/src/Algorithms/GLGM06/reach_inhomog.jl
index 03d9ecd4a..406d3fc27 100644
--- a/src/Algorithms/GLGM06/reach_inhomog.jl
+++ b/src/Algorithms/GLGM06/reach_inhomog.jl
@@ -9,7 +9,7 @@ function reach_inhomog_GLGM06!(F::Vector{ReachSet{N,Zonotope{N,VN,MN}}},
                                NSTEPS::Integer,
                                δ::Float64,
                                max_order::Integer,
-                               X::Universe,
+                               ::Universe,
                                U::LazySet,
                                reduction_method::AbstractReductionMethod,
                                Δt0::TimeInterval,
diff --git a/src/Algorithms/INT/reach_homog.jl b/src/Algorithms/INT/reach_homog.jl
index d3811c44e..6ebe81af5 100644
--- a/src/Algorithms/INT/reach_homog.jl
+++ b/src/Algorithms/INT/reach_homog.jl
@@ -8,7 +8,7 @@ function reach_homog_INT!(F::Vector{ReachSet{N,Interval{N}}},
                           Φ::N,
                           NSTEPS::Integer,
                           δ::Float64,
-                          X::Universe,
+                          ::Universe,
                           Δt0::TimeInterval) where {N}
     # initial reach set
     Δt = (zero(N) .. δ) + Δt0
diff --git a/src/Algorithms/INT/reach_inhomog.jl b/src/Algorithms/INT/reach_inhomog.jl
index 6761dfb79..3e4450086 100644
--- a/src/Algorithms/INT/reach_inhomog.jl
+++ b/src/Algorithms/INT/reach_inhomog.jl
@@ -8,7 +8,7 @@ function reach_inhomog_INT!(F::Vector{ReachSet{N,Interval{N}}},
                             Φ::N,
                             NSTEPS::Integer,
                             δ::Float64,
-                            X::Universe,
+                            ::Universe,
                             U::Interval,
                             Δt0::TimeInterval) where {N}
 
diff --git a/src/Algorithms/LGG09/LGG09.jl b/src/Algorithms/LGG09/LGG09.jl
index 29024e620..1e23a8be2 100644
--- a/src/Algorithms/LGG09/LGG09.jl
+++ b/src/Algorithms/LGG09/LGG09.jl
@@ -132,7 +132,7 @@ step_size(alg::LGG09) = alg.δ
 numtype(::LGG09{N}) where {N} = N
 setrep(alg::LGG09) = setrep(alg.template)
 
-function rsetrep(alg::LGG09{N,AM,VN,TN}) where {N,AM,VN,TN}
+function rsetrep(::LGG09{N,AM,VN,TN}) where {N,AM,VN,TN}
     SN = SubArray{N,1,Matrix{N},Tuple{Base.Slice{Base.OneTo{Int}},Int},true}
     return TemplateReachSet{N,VN,TN,SN}
 end
diff --git a/src/Algorithms/LGG09/reach_homog.jl b/src/Algorithms/LGG09/reach_homog.jl
index 55685168f..eda97e5b5 100644
--- a/src/Algorithms/LGG09/reach_homog.jl
+++ b/src/Algorithms/LGG09/reach_homog.jl
@@ -9,7 +9,7 @@ function reach_homog_LGG09!(F::Vector{RT},
                             Φ::AbstractMatrix,
                             NSTEPS::Integer,
                             δ::N,
-                            X::Universe, # no invariant
+                            ::Universe, # no invariant
                             Δt0::TimeInterval,
                             cache,
                             threaded) where {N,VN,TN,SN,RT<:TemplateReachSet{N,VN,TN,SN}}
diff --git a/src/Algorithms/LGG09/reach_inhomog.jl b/src/Algorithms/LGG09/reach_inhomog.jl
index 2b8c00ea9..9e9b08cbe 100644
--- a/src/Algorithms/LGG09/reach_inhomog.jl
+++ b/src/Algorithms/LGG09/reach_inhomog.jl
@@ -8,7 +8,7 @@ function reach_inhomog_LGG09!(F::Vector{RT},
                               Φ::AbstractMatrix{N},
                               NSTEPS::Integer,
                               δ::N,
-                              X::Universe,
+                              ::Universe,
                               U::LazySet,
                               Δt0::TimeInterval,
                               cache,
diff --git a/src/Algorithms/ORBIT/post.jl b/src/Algorithms/ORBIT/post.jl
index 1ba45063a..afa1d5c2b 100644
--- a/src/Algorithms/ORBIT/post.jl
+++ b/src/Algorithms/ORBIT/post.jl
@@ -104,7 +104,7 @@ end
 # Φ^2*Ω0 + Φ*V + V
 # ....
 # Φ^(NSTEPS)*Ω0 + Φ^(NSTEPS-1)*V + ... + Φ*V + V
-function _orbit!(F, Φ::AbstractMatrix{N}, Ω0, V, NSTEPS, δ, X::Universe, Δt0) where {N}
+function _orbit!(F, Φ::AbstractMatrix{N}, Ω0, V, NSTEPS, δ, ::Universe, Δt0) where {N}
     # preallocate output sequence
     n = size(Φ, 1)
     VT = vector_type(typeof(Φ))
diff --git a/src/Algorithms/TMJets/common.jl b/src/Algorithms/TMJets/common.jl
index 07f0c9e5a..dda1853cf 100644
--- a/src/Algorithms/TMJets/common.jl
+++ b/src/Algorithms/TMJets/common.jl
@@ -28,7 +28,7 @@ function _initialize(X0::LazySet, orderQ, orderT)
     return _initialize(box_approximation(X0), orderQ, orderT)
 end
 
-# taylor model representations
+# Taylor model representations
 function _initialize(X0::TaylorModelReachSet, orderQ, orderT)
     return set(X0)
 end
diff --git a/src/Algorithms/VREP/VREP.jl b/src/Algorithms/VREP/VREP.jl
index e25f87d15..04df72816 100644
--- a/src/Algorithms/VREP/VREP.jl
+++ b/src/Algorithms/VREP/VREP.jl
@@ -23,11 +23,11 @@ end
 step_size(alg::VREP) = alg.δ
 numtype(::VREP{N}) where {N} = N
 
-function setrep(alg::VREP{N,AM,Val{false},Missing}) where {N,AM}
+function setrep(::VREP{N,AM,Val{false},Missing}) where {N,AM}
     return VPolytope{N,Vector{N}}
 end
 
-function setrep(alg::VREP{N,AM,Val{false},D}) where {N,AM,D}
+function setrep(::VREP{N,AM,Val{false},D}) where {N,AM,D}
     return VPolygon{N,Vector{N}}
 end
 
@@ -35,17 +35,17 @@ function setrep(alg::VREP{N,AM,Val{true},Missing}) where {N,AM}
     return error("the set representation of this algorithm requires the dimension to be specified, but it is $(alg.dim)")
 end
 
-function setrep(alg::VREP{N,AM,Val{true},Val{2}}) where {N,AM}
+function setrep(::VREP{N,AM,Val{true},Val{2}}) where {N,AM}
     return VPolygon{N,SVector{2,N}}
 end
 
-function setrep(alg::VREP{N,AM,Val{true},Val{n}}) where {N,AM,n}
+function setrep(::VREP{N,AM,Val{true},Val{n}}) where {N,AM,n}
     return VPolytope{N,SVector{n,N}}
 end
 
 function rsetrep(alg::VREP{N}) where {N}
     ST = setrep(alg)
-    return RT = ReachSet{N,ST}
+    return ReachSet{N,ST}
 end
 
 include("post.jl")
diff --git a/src/Algorithms/VREP/reach_homog.jl b/src/Algorithms/VREP/reach_homog.jl
index 5854e107f..faccc88a0 100644
--- a/src/Algorithms/VREP/reach_homog.jl
+++ b/src/Algorithms/VREP/reach_homog.jl
@@ -7,7 +7,7 @@ function reach_homog_VREP!(F::Vector{ReachSet{N,VP}},
                            Φ::AbstractMatrix,
                            NSTEPS::Integer,
                            δ::Float64,
-                           X::Universe,
+                           ::Universe,
                            Δt0::TimeInterval) where {N,VN,VP<:VPOLY{N,VN}}
 
     # initial reach set