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References to 'ground fields and rings'
1. algebraic geometry by archibal
2. Cayley-Dickson construction by CWoo
3. closure of a vector subspace in a normed space is a vector subspace by gumau
4. complementary subspace by rmilson
5. countable algebraic sets by rspuzio
6. curve by rmilson
7. dimension formulae for vector spaces by yark
8. every finite dimensional subspace of a normed space is closed by Mathprof
9. Hamiltonian algebroids by bci1
10. hyperbolic plane in quadratic spaces by CWoo
11. Jordan-Banach and Jordan-Lie algebras by bci1
12. linearization by CWoo
13. projection by rmilson
14. Schur's lemma by rmilson
15. second order tensor: symmetric and skew-symmetric parts by rspuzio
16. splitting field by djao
17. tensor algebra by rmilson
18. theorems on sums of squares by CWoo
19. topological proof of the Cayley-Hamilton theorem by rmilson