diff --git a/braids.md b/braids.md
index 099a5e1cf..748911c7f 100644
--- a/braids.md
+++ b/braids.md
@@ -14,9 +14,11 @@
 				- as I hold, I traverse a lateral edge ▶
 				- as I breathe out, I [[factorize]] the number and I go down 👇
 				- as I am yet not breathing in, I optionally rest as I go left ◀️
-			- I start at [[0]] and move up according to two default rules:
+			- I start at [[0]] and move up according to three default rules:
 				- increase the number by one
 					- so after [[1]] comes [[2]]
 				- increase one of its factors by one and multiply
 					- this is equivalent to the above for a [[prime]]
-					- the choice can be made to encode a number by convention
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+					- the choice can be made to encode a number by convention
+				- extra rules can be agreed and numbered
+			- a braid is
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