Sometime = Always + Recursion = Always on the Equivalence of the Intermittent and Invariant Assertions Methods for Proving Inevitability Properties of Programs.

Patrick Cousot Radhia Cousot Sometime = Always + Recursion = Always on the Equivalence of the Intermittent and Invariant Assertions Methods for Proving Inevitability Properties of Programs. 1-31 1987 24 Acta Inf. 1 db/journals/acta/acta24.html#CousotC87