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-rw-r--r--src/libstd/primitive_docs.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libstd/primitive_docs.rs b/src/libstd/primitive_docs.rs
index 24f728158c4..42b64d2b5a5 100644
--- a/src/libstd/primitive_docs.rs
+++ b/src/libstd/primitive_docs.rs
@@ -683,6 +683,10 @@ mod prim_str { }
 /// assert_eq!(tuple.2, 'c');
 /// ```
 ///
+/// The sequential nature of the tuple applies to its implementations of various
+/// traits.  For example, in `PartialOrd` and `Ord`, the elements are compared
+/// sequentially until the first non-equal set is found.
+///
 /// For more about tuples, see [the book](../book/ch03-02-data-types.html#the-tuple-type).
 ///
 /// # Trait implementations