
Proof Rules—Basics 149
14. Proof rules are logical inference rules for
various standard programming constructs
used in Structured Programming.
15. Static structure the defi nition and relationships
between quantities in an algorithm or program
as it is expressed or written.
16. Symbolic execution use of computers
to manipulate mathematical equations and
expressions in symbolic form, as opposed to
manipulating the approximations of specifi c
numerical quantities represented by those
symbols. It has uses in software testing
under the title of symbolic execution where
it can be used to analyze if and when errors
in the code may occur. It can ...