| Step |
Hyp |
Ref |
Expression |
| 1 |
|
mulcl |
|
| 2 |
|
homval |
|
| 3 |
1 2
|
syl3an1 |
|
| 4 |
3
|
3expia |
|
| 5 |
4
|
3impa |
|
| 6 |
5
|
imp |
|
| 7 |
|
homval |
|
| 8 |
7
|
oveq2d |
|
| 9 |
8
|
3expa |
|
| 10 |
9
|
3adantl1 |
|
| 11 |
|
ffvelcdm |
|
| 12 |
|
ax-hvmulass |
|
| 13 |
11 12
|
syl3an3 |
|
| 14 |
13
|
3expa |
|
| 15 |
14
|
exp43 |
|
| 16 |
15
|
3imp1 |
|
| 17 |
10 16
|
eqtr4d |
|
| 18 |
6 17
|
eqtr4d |
|
| 19 |
|
homulcl |
|
| 20 |
|
homval |
|
| 21 |
19 20
|
syl3an2 |
|
| 22 |
21
|
3expia |
|
| 23 |
22
|
3impb |
|
| 24 |
23
|
imp |
|
| 25 |
18 24
|
eqtr4d |
|
| 26 |
25
|
ralrimiva |
|
| 27 |
|
homulcl |
|
| 28 |
1 27
|
stoic3 |
|
| 29 |
|
homulcl |
|
| 30 |
19 29
|
sylan2 |
|
| 31 |
30
|
3impb |
|
| 32 |
|
hoeq |
|
| 33 |
28 31 32
|
syl2anc |
|
| 34 |
26 33
|
mpbid |
|