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diff --git a/doc/salome/gui/SMESH/input/about_hypo.doc b/doc/salome/gui/SMESH/input/about_hypo.doc
index 5690ff36c..12f5c02e1 100644
--- a/doc/salome/gui/SMESH/input/about_hypo.doc
+++ b/doc/salome/gui/SMESH/input/about_hypo.doc
@@ -2,27 +2,44 @@
 
 \page about_hypo_page About Hypotheses
 
-\n \b Hypotheses represent boundary conditions which will be taken into
-account at calculations of meshes or submeshes basing on geometrical
-objects. These hypotheses allow you to manage the level of detail of
-the resulting meshes or submeshes: when applying different hypotheses
-with different parameters you can preset the quantity of meshing
+\b Hypotheses represent boundary conditions which will be taken into
+account by meshing algorithms.
+The hypotheses allow you to manage the level of detail of
+the resulting mesh: when applying different hypotheses
+with different parameters you can preset the quantity or size of
 elements which will compose your mesh. So, it will be possible to
-generate a rough or a more refined mesh or submesh.
+generate a coarse or a more refined mesh.
 
-In \b MESH there are the following Basic Hypotheses (to introduce
-them, you operate numerical values):
+The choice of a hypothesis depends on the selected algorithm.
+
+Hypotheses are created during creation and edition of 
+\ref constructing_meshes_page "meshes" and
+\ref constructing_submeshes_page "sub-meshes". 
+Once created a hypotheses can be reused during creation and edition of
+other meshes and sub-meshes. All created hypotheses and algorithms are
+present in the Object Browser in \a Hypotheses and \a Algorithms
+folders correspondingly. It is possible to open a dialog to modify the
+parameters of a hypothesis from its context menu. This menu also
+provides \b Unassign command that will unassign the hypothesis from
+all meshes and sub-meshes using it. Modification of any parameter of a
+hypothesis and its unassignment leads to automatic removal of elements
+generated using it.
+
+In \b MESH there are the following Basic Hypotheses:
 <ul>
 <li>\subpage a1d_meshing_hypo_page "1D Hypotheses" (for meshing of 
 <b>edges</b>):</li>
 <ul>
-<li>\ref arithmetic_1d_anchor "Arithmetic 1D"</li>
+<li>\ref number_of_segments_anchor "Number of segments"</li>
 <li>\ref average_length_anchor "Local Length"</li>
 <li>\ref max_length_anchor "Max Size"</li>
-<li>\ref deflection_1d_anchor "Deflection 1D"</li>
-<li>\ref number_of_segments_anchor "Number of segments"</li>
+<li>\ref adaptive_1d_anchor "Adaptive"</li>
+<li>\ref arithmetic_1d_anchor "Arithmetic 1D"</li>
+<li>\ref geometric_1d_anchor "Geometric Progression"</li>
 <li>\ref start_and_end_length_anchor "Start and end length"</li>
+<li>\ref deflection_1d_anchor "Deflection 1D"</li>
 <li>\ref automatic_length_anchor "Automatic Length"</li>
+<li>\ref fixed_points_1d_anchor "Fixed points 1D"</li>
 </ul>
 <li>\subpage a2d_meshing_hypo_page "2D Hypotheses" (for meshing of <b>faces</b>):</li>
 <ul>
@@ -36,22 +53,14 @@ them, you operate numerical values):
 </ul>
 </ul>
 
-There also exist  
-\subpage additional_hypo_page "Additional Hypotheses" used together
-with other hypotheses:
+There also exist
+\subpage additional_hypo_page "Additional Hypotheses":
 <ul>
 <li>\ref propagation_anchor "Propagation of 1D Hypothesis on opposite edges"</li>
+<li>\ref propagofdistribution_anchor "Propagation of Node Distribution on Opposite Edges"</li>
 <li>\ref viscous_layers_anchor "Viscous layers"</li>
 <li>\ref quadratic_mesh_anchor "Quadratic mesh"</li>
-<li>\ref non_conform_allowed_anchor "Non conform mesh allowed"</li>
 <li>\ref quadrangle_preference_anchor "Quadrangle preference"</li>
 </ul>
 
-The choice of a hypothesis depends on:
-<ul>
-<li>the geometrical object (shape) which will be meshed</li>
-<li>the algorithm, which will be selected for meshing of this geometrical object (shape)</li>
-</ul>
-
- 
 */