Local Hint Resolve valid_block_inject_1 valid_block_inject_2: mem.

Theorem range_perm_inject:
forall f m1 m2 b1 b2 delta lo hi k p,
f b1 = Some(b2, delta) ->
inject f m1 m2 ->
range_perm m1 b1 lo hi k p -> range_perm m2 b2 (lo + delta) (hi + delta) k p.