Step |
Hyp |
Ref |
Expression |
1 |
|
congtr |
|
2 |
1
|
3expa |
|
3 |
2
|
orcd |
|
4 |
3
|
ex |
|
5 |
|
simpll |
|
6 |
|
znegcl |
|
7 |
|
znegcl |
|
8 |
6 7
|
anim12i |
|
9 |
8
|
ad2antlr |
|
10 |
|
simplll |
|
11 |
|
simplrl |
|
12 |
|
simplrr |
|
13 |
|
simpr |
|
14 |
|
congsym |
|
15 |
10 11 12 13 14
|
syl22anc |
|
16 |
15
|
ex |
|
17 |
|
zcn |
|
18 |
17
|
adantr |
|
19 |
|
zcn |
|
20 |
19
|
adantl |
|
21 |
18 20
|
neg2subd |
|
22 |
21
|
adantl |
|
23 |
22
|
eqcomd |
|
24 |
23
|
breq2d |
|
25 |
16 24
|
sylibd |
|
26 |
25
|
anim2d |
|
27 |
26
|
imp |
|
28 |
|
congtr |
|
29 |
5 9 27 28
|
syl3anc |
|
30 |
29
|
olcd |
|
31 |
30
|
ex |
|
32 |
|
simpll |
|
33 |
7
|
anim2i |
|
34 |
33
|
ad2antlr |
|
35 |
|
simpr |
|
36 |
|
congtr |
|
37 |
32 34 35 36
|
syl3anc |
|
38 |
37
|
olcd |
|
39 |
38
|
ex |
|
40 |
|
simpll |
|
41 |
6
|
anim1i |
|
42 |
41
|
ad2antlr |
|
43 |
|
simpl |
|
44 |
|
simpr |
|
45 |
43 44
|
anim12i |
|
46 |
45
|
an42s |
|
47 |
46
|
adantr |
|
48 |
7
|
adantl |
|
49 |
48
|
ad2antlr |
|
50 |
|
simpr |
|
51 |
|
congsym |
|
52 |
47 49 50 51
|
syl12anc |
|
53 |
52
|
ex |
|
54 |
18
|
negnegd |
|
55 |
54
|
oveq2d |
|
56 |
|
zcn |
|
57 |
56
|
adantr |
|
58 |
8 57
|
syl |
|
59 |
20 58
|
neg2subd |
|
60 |
55 59
|
eqtr3d |
|
61 |
60
|
adantl |
|
62 |
61
|
breq2d |
|
63 |
53 62
|
sylibd |
|
64 |
63
|
anim2d |
|
65 |
64
|
imp |
|
66 |
|
congtr |
|
67 |
40 42 65 66
|
syl3anc |
|
68 |
67
|
orcd |
|
69 |
68
|
ex |
|
70 |
4 31 39 69
|
ccased |
|
71 |
70
|
3impia |
|