21121
Past
- 0 Hegel's 'System of Science'
- 1 Logic (Thinking of Thinking, Science of Science)
- 2 Nature (science of matter)
- 3 Spirit/Mind (Science of humanities)
- 21 Mechanics
- 22 Physics (including Chemistry)
- 23 Organism / Life (Subjectivity)
- 211 Abstract extension/extrinsicality (immaterial nature)
- 212 Finite mechanics (matter and motion)
- 213 Celestial mechanics (infinite motion, astronomy)
- 2111 Space (geometry)
- 2112 Time
- 2113 Location (event)
- 21121 Past
- 21122 Future
- 21123 Present