| changeset 15140 | 322485b816ac |
| parent 15131 | c69542757a4d |
| child 15178 | 5f621aa35c25 |
| 15139:58cd3404cf75 | 15140:322485b816ac |
|---|---|
4 *) |
4 *) |
5 |
5 |
6 header {* (Ordered) Rings and Fields *} |
6 header {* (Ordered) Rings and Fields *} |
7 |
7 |
8 theory Ring_and_Field |
8 theory Ring_and_Field |
9 import OrderedGroup |
9 imports OrderedGroup |
10 begin |
10 begin |
11 |
11 |
12 text {* |
12 text {* |
13 The theory of partially ordered rings is taken from the books: |
13 The theory of partially ordered rings is taken from the books: |
14 \begin{itemize} |
14 \begin{itemize} |