 As mentioned above, the two players in a dialogue argue on a thesis (the statement that is the subject of the whole argument). They challenge and defend statements according to rules, which spell out the play’s progress and the meaning of statements in terms of possible interaction between players. There are two kinds of game rules that need to be distinguished: particle rules (Partikelregeln) and structural rules (Rahmenregeln). Particle rules determine what kind of move each player is allowed to make during a play, whereas the structural rules determine the structure of the play: how it starts, ends, and what special rules apply to players. The game rules are detailed in  Section 2.1.1.