SUBST-1-TYPE : WFFOP

SUBST-1-TYPE is a wff operation.
Substitute typevar with typesym.
 
The calling scheme for SUBST-1-TYPE is:

(SUBST-1-TYPE TYPEVAR TYPESYM GWFF)
"TYPESYM" "TYPESYM" "GWFF"


The result is of type GWFF.

The arguments have the following meaning:
TYPEVAR : Type to be replaced
TYPESYM : Type to be substituted
GWFF : in what wff?

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