Introduction
Smatrix as a functor
The *category of Hilbert spaces
The monoidal *category of Hilbert spaces and its counterpart at the level of nCob
TQFT as a functor
The situation is in TGD framework
Some general ideas
Operads, number theoretical braids, and inclusions of HFFs
Generalized Feynman diagram as category?
Planar operads, the notion of finite measurement resolution, and arrow of geometric time
Zeroth order heuristics about zero energy states
Planar operads
Planar operads and zero energy states
Relationship to ordinary Feynman diagrammatics
Category theory and symplectic QFT
Fusion rules
Symplectic diagrams
A couple of questions inspired by the analogy with conformal field theories
Associativity conditions and braiding
Finitedimensional version of the fusion algebra
Could operads allow the formulation of the generalized Feynman rules?
How to combine conformal fields with symplectic fields?
Symplectoconformal fields in Super KacMoody sector
The treatment of fourmomentum
What does the improvement of measurement resolution really mean?
How do the operads formed by generalized Feynman diagrams and symplectoconformal fields relate?
Possible other applications of category theory
Categorification and finite measurement resolution
Inclusions of HFFs and planar tangles
2plectic structures and TGD
TGD variant for the category nCob
Number theoretical universality and category theory
Category theory and fermionic parts of zero energy states as logical deductions
Category theory and hierarchy of Planck constants
