diff --git a/SC2015.md b/SC2015.md
index a7809a1..b7f6edd 100644
--- a/SC2015.md
+++ b/SC2015.md
@@ -31,14 +31,13 @@ If an `if` clause is used instead, this problem is avoided.
 
 ### Boring detail:
 
-
 We can think of the example above as
 ```sh
 ((([[ $dryrun ]]) && echo "Would delete file") || rm file)
 ```
 expressing the left-associativity of the `&&` `||` operators.
 
-Whenever a command (strictly, a pipeline) succeeds or fails, the execution proceeds following the next `&&` (for success) or `||` (for failure).
+Whenever a command (strictly, a pipeline) succeeds or fails, the execution proceeds following the next `&&` (for success) or `||` (for failure). (More strictly, the parentheses should be replaced with `{ command; }` to avoid making a subshell, but that's ugly and boring.)
 
 ### Exceptions
 Ignore this warning when you actually do intend to run C when either A or B fails.