1. Introduction

  2. Is non-associative physics possible in many-sheeted space-time?

    1. What does non-associativity mean?

    2. Language and many-sheeted physics?

    3. What about the hierarchy of Planck constants?

  3. Braiding hierarchy mathematically

    1. How to represent the hierarchy of braids?

    2. Braid groups as coverings of permutation groups

    3. Braid having braids as strands

  4. General formulation for the breaking of associativity in the case of operads

    1. How associativity could be broken?

    2. An attempt to interpret