metastatementn.

1945 Mind 54 214 My views on causality find their expression in certain metastatements within and features of the ideal matrix.

1976 Language 52 416 Neg-raising, I claim, operates on sentences whose highest verb is such a ‘metastatement’ operator or ‘hedge’, its function being to remove the negation from the (embedded) statement and place it in the metastatement—making it clear that the negation of denial is a subjective interpretation.

1982 J. Campbell Grammatical Man xi. 131 In logic, an important distinction has to be made between statements and ‘meta-statements’, which contain information about the statements, and stand outside them.

1990 Man 25 583 When Orwell contrasted the phrase ‘all animals are equal’ with ‘some animals are more equal than others’ his intention was to exemplify a particular type of meaninglessness in political discourse... It makes no sense in terms of a propositional approach to language about the world. It is a kind of meta-statement about statements about equality.