Notes for AKT-090924-1/0:05:49

Correction: let ${\mathcal {D}}_{n}$ be the space freely generated by all chord diagrams with $n$ chords (instead of being just the set of all such diagrams)

Restating of the fundamental theorem: $W_{n}={{\mathcal {A}}_{n}^{\star }}$ where ${\mathcal {A}}_{n}={\mathcal {D}}_{n}/{4T}$