Abstract
In a previous paper, we developed an algebraic theory of threads and 
multi-threads based on strategic interleaving.
This theory includes a number of plausible interleaving strategies on 
thread vectors.
The strategic interleaving of a thread vector constitutes a 
multi-thread.
Several multi-threads may exist concurrently on a single host in a 
network, several host behaviors may exist concurrently in a single
network on the internet, etc.
Strategic interleaving is also present at these other levels.
In the current paper, we extend the theory developed so far with 
features to cover multi-level strategic interleaving.
Preprint available here.