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DEPTH_EXISTS_CONV                                          (unwindLib)
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DEPTH_EXISTS_CONV : (conv -> conv)

SYNOPSIS
Applies a conversion to the body of nested existential quantifications.

LIBRARY
unwind

DESCRIBE
{DEPTH_EXISTS_CONV conv "?x1 ... xn. body"} applies {conv} to {"body"} and
returns a theorem of the form:

   |- (?x1 ... xn. body) = (?x1 ... xn. body')


FAILURE
Fails if the application of {conv} fails.

EXAMPLE

#DEPTH_EXISTS_CONV BETA_CONV "?x y z. (\w. x /\ y /\ z /\ w) T";;
|- (?x y z. (\w. x /\ y /\ z /\ w)T) = (?x y z. x /\ y /\ z /\ T)


SEEALSO
unwindLib.DEPTH_FORALL_CONV.

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