NON-ATOMIC-OR-TRUTHVALUE : WFFOPNON-ATOMIC-OR-TRUTHVALUE is a wff operation.
Tests whether a wff is not atomic or a truth value, that is, truth, falsehood, negated,
quantified or the result of joining two wffs with a binary connective.
The calling scheme for NON-ATOMIC-OR-TRUTHVALUE is:
The result is of type BOOLEAN.
The arguments have the following meaning:
GWFF : Wff
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