diff --git a/src/math/lp/column.h b/src/math/lp/column.h
index 68e1e557a..dc4b63134 100644
--- a/src/math/lp/column.h
+++ b/src/math/lp/column.h
@@ -40,7 +40,6 @@ class lar_term; // forward definition
 class column {
     u_dependency* m_lower_bound_witness = nullptr;
     u_dependency* m_upper_bound_witness = nullptr;
-    bool          m_associated_with_row = false;  
     lar_term*     m_term = nullptr;
 public:
     lar_term*  term() const { return m_term; }
@@ -50,13 +49,11 @@ public:
     u_dependency*& upper_bound_witness() { return m_upper_bound_witness; }
     u_dependency* upper_bound_witness() const { return m_upper_bound_witness; }
 
-    column()  = delete;
-    column(bool) = delete;
+    column() {}
 
-    column(bool associated_with_row, lar_term* term) :
-        m_associated_with_row(associated_with_row), m_term(term) {}
+    column(lar_term* term) : m_term(term) {}
 
-    bool associated_with_row() const { return m_associated_with_row; }
+    bool associated_with_row() const { return m_term != nullptr; }
 };
 
 }
diff --git a/src/math/lp/lar_solver.cpp b/src/math/lp/lar_solver.cpp
index f687f87f0..5818641f1 100644
--- a/src/math/lp/lar_solver.cpp
+++ b/src/math/lp/lar_solver.cpp
@@ -1577,7 +1577,7 @@ namespace lp {
             return local_j;
         lp_assert(m_columns.size() == A_r().column_count());
         local_j = A_r().column_count();
-        m_columns.push_back(column(false, nullptr)); // false - not associated with a row, nullptr for term
+        m_columns.push_back(column());
         m_trail.push(undo_add_column(*this));
         while (m_usage_in_terms.size() <= local_j) 
             m_usage_in_terms.push_back(0);
@@ -1704,7 +1704,7 @@ namespace lp {
         // j will be a new variable
         unsigned j = A_r().column_count();
         SASSERT(ext_index == null_lpvar || external_to_local(ext_index) == j);
-        column ul(true, term); // true - to mark this column as associated_with_row
+        column ul(term);
         term->j() = j; // point from the term to the column
         m_columns.push_back(ul);
         m_trail.push(undo_add_column(*this));