list_mk_exists
boolSyntax.list_mk_exists : term list * term -> term
Iteratively constructs an existential quantification.
list_mk_exists([x1,...,xn],t)
returns
?x1 ... xn. t
.
Fails if the terms in the list are not variables or if t
is not of type bool
and the list of terms is non-empty. If
the list of terms is empty the type of t
can be
anything.