| Class | Description | 
|---|---|
| Bottom | 
 The Bottom element of the sign lattice, representing
 no number at all. 
 | 
| Geq | 
 The Geq element of the sign lattice, representing
 all positive integers and zero. 
 | 
| Leq | 
 The Leq element of the sign lattice, representing
 all negative numbers and zero. 
 | 
| Neg | 
 The Neg element of the sign lattice, representing
 all strictly negative integers. 
 | 
| Pos | 
 The Pos element of the sign lattice, representing
 all strictly positive numbers. 
 | 
| SignAnalysisDomainElem | 
 A domain element for sign analysis. 
 | 
| SignAnalysisLattice | 
 A lattice for sign analysis of integers. 
 | 
| Top | 
 The Top element of the sign lattice, representing
 all integers. 
 | 
| Zero | 
 The Zero element of the sign lattice, representing
 only the number 0. 
 |