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