Explanation:

Who does this work: Computer Algebra System

Motive for doing this work:

1. lecture video
2. hand-written notes
3. Latex document
4. Content tags
   • section document structure
   • tagging words
   • expression semantics
5. tags for sections and words and expressions
6. concepts to variables
7. all steps
8. derivation graph
9. replace symbols with numeric ID
10. validation of steps
11. validation of dimension
12. proof of inference rule