Description: Define additive identity for trace-preserving endomorphisms. Change bound variable to isolate it later. (Contributed by NM, 11-Jun-2013)
Ref | Expression | ||
---|---|---|---|
Hypothesis | tendo0cbv.o | |
|
Assertion | tendo0cbv | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tendo0cbv.o | |
|
2 | eqidd | |
|
3 | 2 | cbvmptv | |
4 | 1 3 | eqtri | |