NOT_EXISTS_CONV
Conv.NOT_EXISTS_CONV : conv
Moves negation inwards through an existential quantification.
When applied to a term of the form ~(?x.P), the conversion
NOT_EXISTS_CONV returns the theorem:
|- ~(?x.P) = !x.~P
Failure
Fails if applied to a term not of the form ~(?x.P).
See also
Conv.EXISTS_NOT_CONV,
Conv.FORALL_NOT_CONV,
Conv.NOT_FORALL_CONV