والغرض من صناعة الجدل إلزام الخصم أو حفظ الرأي.
The purpose of the dialectical art is to hold an opponent to their commitments or to defend a position.
Binding the opponent means showing conclusions that follow from the opponent's own accepted premises. Defending a position means supporting it with premises recognized in the relevant discussion.
These purposes are not identical to obtaining demonstrative certainty. A dialectical argument may settle an exchange without independently establishing every premise as true.