Description: Value of additive inverse endomorphism. (Contributed by NM, 12-Jun-2013)
Ref | Expression | ||
---|---|---|---|
Hypotheses | tendoi.i | |
|
tendoi.t | |
||
Assertion | tendoi2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tendoi.i | |
|
2 | tendoi.t | |
|
3 | 1 2 | tendoi | |
4 | 3 | adantr | |
5 | fveq2 | |
|
6 | 5 | cnveqd | |
7 | 6 | adantl | |
8 | simpr | |
|
9 | fvex | |
|
10 | 9 | cnvex | |
11 | 10 | a1i | |
12 | 4 7 8 11 | fvmptd | |