WFFEQ-NNF : WFFOP

WFFEQ-NNF is a wff operation.
Test for equality modulo negation normal form.
 
The calling scheme for WFFEQ-NNF is:

(WFFEQ-NNF WFF1 WFF2)
"GWFF" "GWFF"


The result is of type BOOLEAN.

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