Section RAMIF_PLAIN.
Context {A : Type}.
Context {ND : NatDed A}.
Context {SL : SepLog A}.

Lemma split: forall g1 g2 l1 l2 g1' g2' l1' l2',
g1 |-- l1 * (l1' -* g1') ->
g2 |-- l2 * (l2' -* g2') ->
g1 * g2 |-- (l1 * l2) * (l1' * l2' -* g1' * g2').