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Mirrors > Home > MPE Home > Th. List > df-grpo | Structured version Visualization version Unicode version |
Description: Define the class of all group operations. The base set for a group can be determined from its group operation. Based on the definition in Exercise 28 of [Herstein] p. 54. (Contributed by NM, 10-Oct-2006.) (New usage is discouraged.) |
Ref | Expression |
---|---|
df-grpo |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cgr 27343 | . 2 | |
2 | vt | . . . . . . . 8 | |
3 | 2 | cv 1482 | . . . . . . 7 |
4 | 3, 3 | cxp 5112 | . . . . . 6 |
5 | vg | . . . . . . 7 | |
6 | 5 | cv 1482 | . . . . . 6 |
7 | 4, 3, 6 | wf 5884 | . . . . 5 |
8 | vx | . . . . . . . . . . . 12 | |
9 | 8 | cv 1482 | . . . . . . . . . . 11 |
10 | vy | . . . . . . . . . . . 12 | |
11 | 10 | cv 1482 | . . . . . . . . . . 11 |
12 | 9, 11, 6 | co 6650 | . . . . . . . . . 10 |
13 | vz | . . . . . . . . . . 11 | |
14 | 13 | cv 1482 | . . . . . . . . . 10 |
15 | 12, 14, 6 | co 6650 | . . . . . . . . 9 |
16 | 11, 14, 6 | co 6650 | . . . . . . . . . 10 |
17 | 9, 16, 6 | co 6650 | . . . . . . . . 9 |
18 | 15, 17 | wceq 1483 | . . . . . . . 8 |
19 | 18, 13, 3 | wral 2912 | . . . . . . 7 |
20 | 19, 10, 3 | wral 2912 | . . . . . 6 |
21 | 20, 8, 3 | wral 2912 | . . . . 5 |
22 | vu | . . . . . . . . . . 11 | |
23 | 22 | cv 1482 | . . . . . . . . . 10 |
24 | 23, 9, 6 | co 6650 | . . . . . . . . 9 |
25 | 24, 9 | wceq 1483 | . . . . . . . 8 |
26 | 11, 9, 6 | co 6650 | . . . . . . . . . 10 |
27 | 26, 23 | wceq 1483 | . . . . . . . . 9 |
28 | 27, 10, 3 | wrex 2913 | . . . . . . . 8 |
29 | 25, 28 | wa 384 | . . . . . . 7 |
30 | 29, 8, 3 | wral 2912 | . . . . . 6 |
31 | 30, 22, 3 | wrex 2913 | . . . . 5 |
32 | 7, 21, 31 | w3a 1037 | . . . 4 |
33 | 32, 2 | wex 1704 | . . 3 |
34 | 33, 5 | cab 2608 | . 2 |
35 | 1, 34 | wceq 1483 | 1 |
Colors of variables: wff setvar class |
This definition is referenced by: isgrpo 27351 |
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