Mathematics

1. Approach Space 100%
2. Normality 69%
3. Topological space 50%
4. Distributive Lattice 41%
5. Continuous Function 38%
6. Contraction 35%
7. Continuous Map 29%
8. Alternatives 28%
9. Regularity 26%
10. Insertion 26%
11. Extension Theorem 21%
12. Adjunction 15%
13. Subset 14%
14. Isomorphic 13%
15. Nonexpansive Map 13%
16. Boolean algebra 13%
17. Quasi-metric 12%
18. Idempotent 11%
19. Functor 11%
20. Locale 10%
21. Chain 9%
22. Family 8%
23. Real Line 8%
24. Lower Semicontinuous 8%
25. Iteration 8%
26. Euclidean 7%
27. Closure 7%
28. Subspace 6%
29. Equivalence 6%
30. Arbitrary 6%
31. Quantale 6%
32. Metric 6%
33. Quasi-metric Space 6%
34. Context 5%
35. Ultrafilter 5%
36. Monads 5%
37. Topology 5%