pub broadcast proof fn lemma_opt_prepare_congruence<A, B>(a: Opt<A>, b: Opt<B>)where
A: Consistency + SpecByteLen<T = A::Val>,
B: Consistency<Val = A::Val> + SpecByteLen<T = A::Val>,Expand description
requires
prepare_congruent(a.0, b.0),ensures#[trigger] prepare_congruent(a, b),