LAST_EXISTS_CONVConv.LAST_EXISTS_CONV : conv -> conv
Applies a conversion to the last existential quantifier (and its body) in a chain.
Application of LAST_EXISTS_CONV c to the term
``?x1 .. xn x. body`` will apply c to the term
``?x. body``. If the result of this application is the
theorem |- (?x. body) = t, then the result of the whole
will be
|- (?x1 .. xn x. body) = (?x1 .. xn. t)
Fails if the term is not existentially quantified, or if the
conversion c fails when it is applied.
Conv.BINDER_CONV, Conv.LAST_FORALL_CONV,
Conv.STRIP_QUANT_CONV