Step |
Hyp |
Ref |
Expression |
1 |
|
sharhght.sigar |
|
2 |
|
sharhght.a |
|
3 |
|
sharhght.b |
|
4 |
2
|
simp1d |
|
5 |
2
|
simp3d |
|
6 |
3
|
simpld |
|
7 |
4 5 6
|
nnncan1d |
|
8 |
7
|
oveq2d |
|
9 |
2
|
simp2d |
|
10 |
9 6
|
subcld |
|
11 |
4 5
|
subcld |
|
12 |
4 6
|
subcld |
|
13 |
1
|
sigarms |
|
14 |
10 11 12 13
|
syl3anc |
|
15 |
8 14
|
eqtr3d |
|
16 |
1
|
sigarac |
|
17 |
12 10 16
|
syl2anc |
|
18 |
3
|
simprd |
|
19 |
17 18
|
eqtr3d |
|
20 |
19
|
negeqd |
|
21 |
10 12
|
jca |
|
22 |
1 21
|
sigarimcd |
|
23 |
22
|
negnegd |
|
24 |
|
neg0 |
|
25 |
24
|
a1i |
|
26 |
20 23 25
|
3eqtr3d |
|
27 |
26
|
oveq2d |
|
28 |
10 11
|
jca |
|
29 |
1 28
|
sigarimcd |
|
30 |
29
|
subid1d |
|
31 |
15 27 30
|
3eqtrd |
|
32 |
9 6 5
|
nnncan2d |
|
33 |
32
|
oveq1d |
|
34 |
9 5
|
subcld |
|
35 |
6 5
|
subcld |
|
36 |
1
|
sigarmf |
|
37 |
34 11 35 36
|
syl3anc |
|
38 |
31 33 37
|
3eqtr2rd |
|
39 |
5 6
|
subcld |
|
40 |
|
1red |
|
41 |
40
|
renegcld |
|
42 |
1
|
sigarls |
|
43 |
10 39 41 42
|
syl3anc |
|
44 |
39
|
mulm1d |
|
45 |
|
1cnd |
|
46 |
45
|
negcld |
|
47 |
46 39
|
mulcomd |
|
48 |
5 6
|
negsubdi2d |
|
49 |
44 47 48
|
3eqtr3d |
|
50 |
49
|
oveq2d |
|
51 |
10 39
|
jca |
|
52 |
1 51
|
sigarimcd |
|
53 |
52
|
mulm1d |
|
54 |
52 46
|
mulcomd |
|
55 |
1
|
sigarac |
|
56 |
39 10 55
|
syl2anc |
|
57 |
53 54 56
|
3eqtr4d |
|
58 |
43 50 57
|
3eqtr3d |
|
59 |
1
|
sigarperm |
|
60 |
5 9 6 59
|
syl3anc |
|
61 |
38 58 60
|
3eqtrd |
|