FREE-FOR : WFFOP

FREE-FOR is a wff operation.
Tests whether a term is free for a variable in a wff.
 
The calling scheme for FREE-FOR is:

(FREE-FOR TERM VAR INWFF)
"GWFF" "GVAR" "GWFF"


The result is of type BOOLEAN.

The arguments have the following meaning:
TERM : term
VAR : var
INWFF : inwff

TPS documentation homepage


© 1988-99, Carnegie Mellon University.

TPS homepage