+generate a coarse or a more refined mesh.
+
+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.