diff --git a/notebooks/Defining problems.ipynb b/notebooks/Defining problems.ipynb
index 460dc0a..0ea1c68 100644
--- a/notebooks/Defining problems.ipynb	
+++ b/notebooks/Defining problems.ipynb	
@@ -81,7 +81,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "44759988",
    "metadata": {},
    "outputs": [
@@ -89,12 +89,12 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "ContinuousProblem{Real}(Bounds{Real}[Bounds{Real}(-1000.0, 1000.0)], Function[var\"#222#223\"(), var\"#224#225\"()], Function[], \"Schaffer\")\n"
+      "ContinuousProblem{Real}(Bounds{Real}[Bounds{Real}(-1000.0, 1000.0)], Function[var\"#9#10\"(), var\"#11#12\"()], Function[], \"Schaffer\")\n"
      ]
     }
    ],
    "source": [
-    "include(\"../src/continuousProblem.jl\")\n",
+    "using metajul\n",
     "\n",
     "schaffer = ContinuousProblem{Real}(\"Schaffer\")\n",
     "\n",
@@ -165,7 +165,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "d496dfdc",
    "metadata": {},
    "outputs": [
@@ -333,7 +333,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "00ca6da7",
    "metadata": {},
    "outputs": [],
@@ -342,15 +342,21 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Julia 1.8.0",
-   "language": "julia",
-   "name": "julia-1.8"
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
   },
   "language_info": {
-   "file_extension": ".jl",
-   "mimetype": "application/julia",
-   "name": "julia",
-   "version": "1.8.0"
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.5"
   }
  },
  "nbformat": 4,
diff --git a/src/util/comparator.jl b/src/util/comparator.jl
index fcbcf5a..0adb05c 100644
--- a/src/util/comparator.jl
+++ b/src/util/comparator.jl
@@ -28,29 +28,30 @@ Compare two numerics vectors `x` and `y` according to the dominance relationship
 function compareForDominance(x::Vector{T}, y::Vector{T})::Int where {T<:Number}
   @assert length(x) == length(y) "The vectors have a different length"
 
-  bestIsSolution1 = false
-  bestIsSolution2 = false
+  bestIsSolution1 = 0
+  bestIsSolution2 = 0
 
-  @inbounds for i in 1:length(x)
+  for i in 1:length(x)
+    if x[i] != y[i]
       if x[i] < y[i]
-          bestIsSolution1 = true
-      elseif x[i] > y[i]
-          bestIsSolution2 = true
+          bestIsSolution1 = 1
       end
-
-      # Early exit if both flags are true
-      if bestIsSolution1 && bestIsSolution2
-          return 0
+      if x[i] > y[i]
+          bestIsSolution2 = 1
       end
+    end
   end
 
-  if bestIsSolution1
-      return -1
-  elseif bestIsSolution2
-      return 1
+  result = 0
+  if bestIsSolution2 < bestIsSolution1
+      result = -1
+  elseif bestIsSolution2 > bestIsSolution1
+      result = 1
   else
-      return 0
+      result = 0
   end
+
+  return result
 end
 
 function compareForDominance(solution1::Solution, solution2::Solution)::Int
diff --git a/test/util/comparatorTest.jl b/test/util/comparatorTest.jl
index 40d8aba..70714e5 100644
--- a/test/util/comparatorTest.jl
+++ b/test/util/comparatorTest.jl
@@ -17,6 +17,10 @@ end
     @test compareForDominance([2.0], [1.0]) == 1
 
     @test compareForDominance([1.0, 2.0], [1.0, 1.0]) == 1
+    @test compareForDominance([2.0, 2.0], [2.0, 1.0]) == 1
+    @test compareForDominance([1.0, 2.0], [2.0, 1.0]) == 0
+    @test compareForDominance([1.0, 2.0], [1.0, 2.0]) == 0
+    @test compareForDominance([1.0, 1.0], [1.0, 2.0]) == -1
 
     @test compareForDominance([1.0,2.0,3.1], [1.0,2.0,3.1]) == 0