Package-level declarations

Represents a mathematical decimal number (ℚ∩ℝ_decimal), with exact arithmetic operations that don't overflow and consistent behavior across all platforms.

Represents a mathematical integer (ℤ), with exact arithmetic operations that don't overflow, consistent division-by-zero behavior across all platforms, and Euclidean division semantics.

Represents an Integer that is greater than or equal to zero.

Represents an Integer that is less than or equal to zero.

Represents an Integer that is other than zero.