# Propagation of 1D Hypothesis on opposite edges

Propagation of 1D Hypothesis on opposite edges allows to propagate a set hypothesis onto an opposite edge. If a local hypothesis and propagation are set on one of edges of a quadrangular face, the opposite edge will have the same hypothesis, unless another hypothesis has been locally set on such opposite edge.

To apply this hypothesis:

Select this hypothesis s in the Create Hypotheses dialog box click Create.