Description: Set of arrows of the category of non-unital rings (in a universe). (Contributed by AV, 27-Feb-2020)
Ref | Expression | ||
---|---|---|---|
Hypotheses | rngcbas.c | |
|
rngcbas.b | |
||
rngcbas.u | |
||
rngchomfval.h | |
||
rngchom.x | |
||
rngchom.y | |
||
Assertion | rngchom | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rngcbas.c | |
|
2 | rngcbas.b | |
|
3 | rngcbas.u | |
|
4 | rngchomfval.h | |
|
5 | rngchom.x | |
|
6 | rngchom.y | |
|
7 | 1 2 3 4 | rngchomfval | |
8 | 7 | oveqd | |
9 | 5 6 | ovresd | |
10 | 8 9 | eqtrd | |