WFF-COMMUTATIVE* is a wff operation.
Recursively apply commutativity laws to a formula:
A and B --> B and A
A or B --> B or A
A implies B --> not B implies not A
A equiv B --> B equiv A.
The calling scheme for WFF-COMMUTATIVE* is:


The result is of type GWFF.

The arguments have the following meaning:
GWFF : Wff

TPS documentation homepage

© 1988-99, Carnegie Mellon University.

TPS homepage