| 1 | sets, functions, finite sets, countable sets | [1] p. 1-10 |
| 2 | order relation, absolute value and some of the important inequalities | [1] p. 10-13 |
| 3 | real number sequences, continuity, linear spaces (vector spaces) | [1] p. 13-24 |
| 4 | metric spaces | [1] p. 27-35 |
| 5 | metric spaces | [1] p. 35-42 |
| 6 | normed spaces | [1] p. 42-44 |
| 7 | sub-metric spaces | [1] p. 44-47 |
| 8 | normed subspaces | [1] p. 44-47 |
| 9 | open sets in metric spaces | [1] p. 60-62 |
| 10 | closed sets in metric spaces | [1] p. 62-64 |
| 11 | open and closed sets in sub-metric spaces | [1] p. 64-65 |
| 12 | neighborhoods in metric spaces | [1] p. 65-70 |
| 13 | equivalent metrics | [1] p. 70-76 |
| 14 | sustainability of these definitions and concepts | [1] p. 70-76 |