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References to 'ideal'
1. adjoining an identity to a semigroup by mclase
2. Alexander Grothendieck by PrimeFan
3. algebroid structures and extended symmetries by bci1
4. bicyclic semigroup by mclase
5. characterization of field by alozano
6. conductor of a vector by CWoo
7. Emmy Noether by PrimeFan
8. example of Klein 4-ring by Algeboy
9. existence of Hilbert class field by mathcam
10. field homomorphism by alozano
11. fundamental homomorphism theorem by yark
12. geometry as the study of invariants under certain transformations by rspuzio
13. Grete Hermann by Mravinci
14. homomorphisms from fields are either injective or trivial by mathcam
15. invariant forms on representations of compact groups by bwebste
16. Rees factor by mclase
17. regular semigroup by yark
18. set closed under an operation by archibal
19. simple semigroup by mclase
20. special notations in algebra by Wkbj79
21. spinor by PrimeFan
22. top ten coolest numbers by rspuzio
23. trace forms on algebras by Algeboy
24. two-generator property by pahio