diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index b64c23e3..b2631c62 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -204,3 +204,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
 - **A-51** (§388; principle 7) The grants part moves to the writer only the four kinds §388 names (`view-waits`,
   `first-view-unanswered`, `first-view-empty`, `binding-unlisted`), through the held writer of a process (A-29, A-40)
   with the foundation stream form of §529; its other conditions stay as they are.
+- **A-52** (§200, §388, §614, §684, A-26; principle 7) The grants part's `view-waits` is the one its reader raises for the
+  catalog half views the branch follower adopts (A-5): the part waits on the catalog half of the revision it composes
+  for, through those views, and writes no `view-waits` of its own.