Section STOREBYTES.
Variable m1: mem.
Variable b: block.
Variable ofs: Z.
Variable bytes: list memval.
Variable m2: mem.
Hypothesis STORE: storebytes m1 b ofs bytes = Some m2.
Local Hint Resolve perm_storebytes_1 perm_storebytes_2: mem.

Theorem storebytes_valid_access_1:
forall chunk' b' ofs' p,
valid_access m1 chunk' b' ofs' p -> valid_access m2 chunk' b' ofs' p.