ISO International Standard

The following are within the scope of this International Standard:

_ the syntax of the Z notation;

_ the type system of the Z notation;

_ the semantics of the Z notation;

_ a toolkit of widely used mathematical operators;

_ LATEX [10] and e-mail mark-ups of the Z notation.

The following are outside the scope of this International Standard:

_ any method of using Z, though an informative annex (E) describes one widely-used convention.