In Jeff writes:

Jere Lull wrote:
In article ,
Terry Spragg wrote:


Garland Gray II wrote:


I'd put two half hitches on that list, right behind the bowline

Would you call that a reef knot, or a granny?


Two half hitches are neither reef knot nor a granny. Nor are the reef
and granny the same.

Actually, two half hitches and the granny are the same knot,
topologically speaking. (Tie a granny and pull one line tight to
collapse the other ...)

Then one should notice that a reef knot and the cow hitch or lark's head
are the same knots. :-). (By the same argument.)

- Lauri Tarkkonen