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References to 'directed set'
1. $C^*$-algebras have approximate identities by asteroid
2. algebraic lattice by CWoo
3. category of $(M,R)$--systems by bci1
4. compact element by CWoo
5. complete distributivity by CWoo
6. complete semilattice by CWoo
7. continuous poset by CWoo
8. criteria for a poset to be a complete lattice by CWoo
9. direct limit of algebraic systems by CWoo
10. direct limit of sets by CWoo
11. domain by CWoo
12. eventual property by CWoo
13. every net has a universal subnet by asteroid
14. extended discussion of the conjugate gradient method by ehremo
15. frequently in by CWoo
16. Grothendieck category by bci1
17. ideal completion of a poset by CWoo
18. intersection structure by CWoo
19. inverse limit by alozano
20. lattice ideal by CWoo
21. Liouville number by PrimeFan
22. Martin's axiom by Henry
23. meet continuous by CWoo
24. net by yark
25. normal equations by akrowne
26. order ideal by CWoo
27. partially ordered group by CWoo
28. profinite group by djao
29. Riesz group by CWoo
30. Scott continuous by CWoo
31. Scott topology by CWoo
32. stalk by djao
33. surjective open maps in terms of nets by asteroid
34. way below by CWoo