Description: The adjoint function is a function. (Contributed by NM, 25-Jan-2008) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | ajfuni.5 | |
|
ajfuni.u | |
||
ajfuni.w | |
||
Assertion | ajfuni | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ajfuni.5 | |
|
2 | ajfuni.u | |
|
3 | ajfuni.w | |
|
4 | funopab | |
|
5 | eqid | |
|
6 | eqid | |
|
7 | 5 6 2 | ajmoi | |
8 | 3simpc | |
|
9 | 8 | moimi | |
10 | 7 9 | ax-mp | |
11 | 4 10 | mpgbir | |
12 | 2 | phnvi | |
13 | eqid | |
|
14 | eqid | |
|
15 | 5 13 6 14 1 | ajfval | |
16 | 12 3 15 | mp2an | |
17 | 16 | funeqi | |
18 | 11 17 | mpbir | |