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flex Expert System Toolkit - LPIS

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Appendix C - KSL Keyword Glossary 224<br />

'{' , '}'<br />

KSL Context<br />

Description<br />

Example<br />

Object<br />

Set constructors.<br />

{ X : manager(X) } includes { john or<br />

mary }<br />

'[' , ']'<br />

KSL Context<br />

Description<br />

Example<br />

Formula<br />

Collect together conditions into a single formula.<br />

if test1<br />

and [ test2 or test3 ]<br />

and not [ test4 and test5 ]<br />

then ...<br />

$<br />

KSL Context<br />

Description<br />

Object / Formula<br />

Indicates that the following object, or all of the<br />

objects in the following formula, should not be<br />

dereferenced during evaluation.<br />

Example if ...<br />

then write( $ temperature )<br />

and write( ' is ' )<br />

and write( temperature )<br />

and nl<br />

:<br />

see such.<br />

:=<br />

same as becomes<br />

=<br />

same as equal.<br />

\=<br />

same as different from.<br />

<<br />

same as less.<br />

=<<br />

same as equal or less than.<br />

<strong>flex</strong> toolkit

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