---------------------------------------------------------------------- dest_exists (boolSyntax) ---------------------------------------------------------------------- dest_exists : term -> term * term SYNOPSIS Breaks apart an existentially quantified term into quantified variable and body. DESCRIBE If {M} has the form {?x. t}, then {dest_exists M} returns {(x,t)}. FAILURE Fails if {M} is not an existential quantification. SEEALSO boolSyntax.mk_exists, boolSyntax.is_exists, boolSyntax.strip_exists. ----------------------------------------------------------------------