 Subjective Interpretation: Suppose the elements \(a\) and \(b\) of \(A\) are players of a game. \(p\) and \(\neg p\) are strategies for player \(a\) and \(q\) and \(\neg q\) are both strategies for player \(b\). In the model, each player is certain of her own strategy; for instance at \(x\), player \(a\) is certain that she will play \(p\) and player \(b\) is certain that she will play \(\neg q\), that is 