Full Idea
Universal prescriptivists hold that 'ought'-judgements are prescriptive like plain imperatives, but differ from them in being universalisable.
Gist of Idea
Prescriptivism sees 'ought' statements as imperatives which are universalisable
Source
Richard M. Hare (Universal Prescriptivism [1991], p.457)
Book Reference
'A Companion to Ethics', ed/tr. Singer,Peter [Blackwell 1993], p.457
A Reaction
Sounds a bit tautological. Which comes first, the normativity or the universalisability?