public WS1SZ3Exists(String variable, WS1SZ3Formula phi) { this.phi = phi; this.variable = variable; }
public WS1SZ3Not(WS1SZ3Formula phi) { this.phi = phi; }
public WS1SZ3And(WS1SZ3Formula left, WS1SZ3Formula right) { this.left = left; this.right = right; }