Description: Lemma for lnopeq0i . (Contributed by NM, 26-Jul-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypothesis | lnopeq0.1 | |
|
Assertion | lnopeq0lem2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lnopeq0.1 | |
|
2 | fveq2 | |
|
3 | 2 | oveq1d | |
4 | fvoveq1 | |
|
5 | oveq1 | |
|
6 | 4 5 | oveq12d | |
7 | fvoveq1 | |
|
8 | oveq1 | |
|
9 | 7 8 | oveq12d | |
10 | 6 9 | oveq12d | |
11 | fvoveq1 | |
|
12 | oveq1 | |
|
13 | 11 12 | oveq12d | |
14 | fvoveq1 | |
|
15 | oveq1 | |
|
16 | 14 15 | oveq12d | |
17 | 13 16 | oveq12d | |
18 | 17 | oveq2d | |
19 | 10 18 | oveq12d | |
20 | 19 | oveq1d | |
21 | 3 20 | eqeq12d | |
22 | oveq2 | |
|
23 | oveq2 | |
|
24 | 23 | fveq2d | |
25 | 24 23 | oveq12d | |
26 | oveq2 | |
|
27 | 26 | fveq2d | |
28 | 27 26 | oveq12d | |
29 | 25 28 | oveq12d | |
30 | oveq2 | |
|
31 | 30 | oveq2d | |
32 | 31 | fveq2d | |
33 | 32 31 | oveq12d | |
34 | 30 | oveq2d | |
35 | 34 | fveq2d | |
36 | 35 34 | oveq12d | |
37 | 33 36 | oveq12d | |
38 | 37 | oveq2d | |
39 | 29 38 | oveq12d | |
40 | 39 | oveq1d | |
41 | 22 40 | eqeq12d | |
42 | ifhvhv0 | |
|
43 | ifhvhv0 | |
|
44 | 1 42 43 | lnopeq0lem1 | |
45 | 21 41 44 | dedth2h | |