Description: Define a quotient ring (or quotient group), which is a special case of an image structure df-imas where the image function is x |-> [ x ] e . (Contributed by Mario Carneiro, 23-Feb-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | df-qus |
Step | Hyp | Ref | Expression |
---|---|---|---|
0 | cqus | ||
1 | vr | ||
2 | cvv | ||
3 | ve | ||
4 | vx | ||
5 | cbs | ||
6 | 1 | cv | |
7 | 6 5 | cfv | |
8 | 4 | cv | |
9 | 3 | cv | |
10 | 8 9 | cec | |
11 | 4 7 10 | cmpt | |
12 | cimas | ||
13 | 11 6 12 | co | |
14 | 1 3 2 2 13 | cmpo | |
15 | 0 14 | wceq |