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-rw-r--r--common/Memdata.v7
1 files changed, 7 insertions, 0 deletions
diff --git a/common/Memdata.v b/common/Memdata.v
index f3016efe..a09b90f5 100644
--- a/common/Memdata.v
+++ b/common/Memdata.v
@@ -44,6 +44,13 @@ Definition size_chunk (chunk: memory_chunk) : Z :=
| Many64 => 8
end.
+Definition largest_size_chunk := 8.
+
+Lemma max_size_chunk: forall chunk, size_chunk chunk <= 8.
+Proof.
+ destruct chunk; simpl; omega.
+Qed.
+
Lemma size_chunk_pos:
forall chunk, size_chunk chunk > 0.
Proof.