diff --git a/src/Solver.cpp b/src/Solver.cpp
index 5e1634d..336711d 100644
--- a/src/Solver.cpp
+++ b/src/Solver.cpp
@@ -19,7 +19,7 @@ Vect Solver::Noyau() const {
 	result.Transpose();
 
 	// nombre de colonnes non nulles
-	std::size_t origine_colonne = Vect(result.SubMatrix(0, 0, m_Matrix.GetRawCount(), m_Matrix.GetColumnCount())).GetDimension();
+	std::size_t origine_colonne = Vect(result.SubMatrix(0, 0, m_Matrix.GetRawCount(), m_Matrix.GetColumnCount())).GetCardinal();
 
 	return {result.SubMatrix(m_Matrix.GetRawCount(), origine_colonne, result.GetRawCount() - m_Matrix.GetRawCount(),
 		result.GetColumnCount() - origine_colonne)};
@@ -27,5 +27,5 @@ Vect Solver::Noyau() const {
 
 std::size_t Solver::Rang() const {
 	Vect image = Image();
-	return image.GetDimension();
+	return image.GetCardinal();
 }
diff --git a/src/Vect.cpp b/src/Vect.cpp
index 5930737..930a92e 100644
--- a/src/Vect.cpp
+++ b/src/Vect.cpp
@@ -23,18 +23,48 @@ void Vect::Simplify() {
 	m_Data = mat;
 }
 
+std::size_t Vect::GetCardinal() const {
+	return m_Data.GetColumnCount();
+}
+
+bool Vect::operator==(const Vect& other) const {
+	if (GetDimension() != other.GetDimension() || GetCardinal() != other.GetCardinal())
+		return false;
+
+	// on vérifie si chaque vecteur de la deuxième base appartient à la première base
+	for (std::size_t i = 0; i < GetCardinal(); i++) {
+		Vect base = *this;
+		base.AddVector(other.m_Data.SubMatrix(0, i, GetDimension(), 1));
+		if (base.GetCardinal() != GetCardinal())
+			return false;
+	}
+	return true;
+}
+
+void Vect::AddVector(const Matrix& mat) {
+	m_Data.Augmenter(mat);
+	m_Data.Transpose();
+	m_Data.GaussNonJordan(false);
+	m_Data.Transpose();
+	Simplify();
+}
+
+bool Vect::operator!=(const Vect& other) const {
+	return !(*this == other);
+}
+
 Matrix Vect::GetLinearSystem() const {
 	Matrix vect = m_Data;
 	vect.Transpose();
 
-	Solver solver {vect};
+	Solver solver{vect};
 	vect = solver.Noyau().m_Data;
 	vect.Transpose();
 	return vect;
 }
 
 void Vect::Print() const {
-	std::cout << "Espace vectoriel de dimension " << GetDimension() << " de base :\n\n";
+	std::cout << "Espace vectoriel de dimension " << GetCardinal() << " de base :\n\n";
 	for (std::size_t i = 0; i < m_Data.GetRawCount(); i++) {
 		for (std::size_t j = 0; j < m_Data.GetColumnCount(); j++) {
 			printf("[ %.3f ]\t", static_cast<float>(m_Data.at(i, j)));
@@ -44,5 +74,5 @@ void Vect::Print() const {
 }
 
 std::size_t Vect::GetDimension() const {
-	return m_Data.GetColumnCount();
+	return m_Data.GetRawCount();
 }
\ No newline at end of file
diff --git a/src/Vect.h b/src/Vect.h
index 5f89f02..6d5c759 100644
--- a/src/Vect.h
+++ b/src/Vect.h
@@ -21,9 +21,19 @@ class Vect {
 	void Print() const;
 
 	std::size_t GetDimension() const;
+	std::size_t GetCardinal() const;
 
 	Matrix GetLinearSystem() const;
 
+	/**
+	 * \brief Concatène la base actuelle avec un nouveau vecteur
+	 * \param mat Une matrice colonne de taille GetDimension()
+	 */
+	void AddVector(const Matrix& mat);
+
+	bool operator==(const Vect& other) const;
+	bool operator!=(const Vect& other) const;
+
   private:
 	void Simplify();
 };
\ No newline at end of file