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References to 'comparison of filters'
1. algebraic geometry by archibal
2. antichain by Henry
3. barrel by CWoo
4. chain by CWoo
5. door space by CWoo
6. every filter is contained in an ultrafilter by rspuzio
7. identification topology by rspuzio
8. identity map by bwebste
9. Kahun Papyrus and Arithmetic Progressions by milogardner
10. linearly ordered by akrowne
11. locally testable by CWoo
12. organismic supercategories and super-complex systems biodynamics by bci1
13. partitions form a lattice by CWoo
14. proof of alternative characterization of ultrafilter by rspuzio
15. proof of every filter is contained in an ultrafilter (alternate proof) by brunoloff
16. relatively prime integer topology by mathcam
17. scattered space by CWoo
18. second order logic by Henry
19. semicontinuous by bwebste
20. spinor by PrimeFan
21. \'etale morphism by mps