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Mirrors > Home > ILE Home > Th. List > df-omul | Unicode version |
Description: Define the ordinal multiplication operation. (Contributed by NM, 26-Aug-1995.) |
Ref | Expression |
---|---|
df-omul |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | comu 5999 | . 2 | |
2 | vx | . . 3 | |
3 | vy | . . 3 | |
4 | con0 4100 | . . 3 | |
5 | 3 | cv 1242 | . . . 4 |
6 | vz | . . . . . 6 | |
7 | cvv 2557 | . . . . . 6 | |
8 | 6 | cv 1242 | . . . . . . 7 |
9 | 2 | cv 1242 | . . . . . . 7 |
10 | coa 5998 | . . . . . . 7 | |
11 | 8, 9, 10 | co 5512 | . . . . . 6 |
12 | 6, 7, 11 | cmpt 3818 | . . . . 5 |
13 | c0 3224 | . . . . 5 | |
14 | 12, 13 | crdg 5956 | . . . 4 |
15 | 5, 14 | cfv 4902 | . . 3 |
16 | 2, 3, 4, 4, 15 | cmpt2 5514 | . 2 |
17 | 1, 16 | wceq 1243 | 1 |
Colors of variables: wff set class |
This definition is referenced by: fnom 6030 omexg 6031 omv 6035 |
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