Namo amitabha.
The Theoretical Mechanics is union of Newtonian, Lagrangian, and Hamiltonian Mechanics plus the other mechanics, i. e. Nambu Mechanics, etc. . . . The range of Mechanics are Classical Mechanics ( Newtonian Mechanics plus Special Theory of Relativity, i. e. the motion of some classical particles in position / configuration space and momentum space ), Quantum Mechanics ( the motion of some states of some quantum particles in Hilbert space, Banach space, etc. ), Thermodynamics ( the motion of the some thermodynamical states in the space of thermodynamical states ), Electronics ( the motion of the electronical charges, currents, inductance, capasitance, etc. in the electronical space ), Particle Physics / Quantum Field Theory ( the motion of some states of some relativistic-quantum particles in the abstrac space ) . . . The Mechanics / Meta-Mechanics explains the motion of some states of some particles / meta-particles in the states-space . . . The prefix "meta-" means "after" . . , so then the term "Meta-Mechanics" means "After-Mechanics" . . . Thus, all brancs of Physics maybe may be called as Mechanics . . .
Hosana in excelcis.
