Remove an unused import

[linpy.git] / doc / reference.rst

diff --git a/doc/reference.rst b/doc/reference.rst
index 64c37c6..ae82aca 100644 (file)
--- a/doc/reference.rst
+++ b/doc/reference.rst
@@ -5,6 +5,8 @@ Module Reference
 ================
 
 
+.. _reference_symbols:
+
 Symbols
 -------
 
@@ -70,6 +72,8 @@ This is achieved using ``Dummy('x')``.
     True
 
 
+.. _reference_linexprs:
+
 Linear Expressions
 ------------------
 
@@ -230,6 +234,8 @@ They are implemented by the :class:`Rational` class, that inherits from both :cl
     See the documentation of :class:`fractions.Fraction` for more information and examples.
 
 
+.. _reference_polyhedra:
+
 Polyhedra
 ---------
 
@@ -305,6 +311,8 @@ This space can be unbounded.
     The universe polyhedron, whose set of constraints is always satisfiable, i.e. is empty.
 
 
+.. _reference_domains:
+
 Domains
 -------
 
@@ -487,6 +495,8 @@ Unlike polyhedra, domains allow exact computation of union, subtraction and comp
         Convert the domain to a sympy expression.
 
 
+.. _reference_operators:
+
 Comparison and Logic Operators
 ------------------------------
 
@@ -532,6 +542,8 @@ The following functions combine :class:`Polyhedron` or :class:`Domain` instances
     Create the complementary domain of the domain given in argument.
 
 
+.. _reference_geometry:
+
 Geometric Objects
 -----------------