Step |
Hyp |
Ref |
Expression |
1 |
|
simpr |
|
2 |
|
simp2l |
|
3 |
2
|
ad2antrr |
|
4 |
|
simp3l |
|
5 |
4
|
ad2antrr |
|
6 |
|
xadddi |
|
7 |
1 3 5 6
|
syl3anc |
|
8 |
|
pnfxr |
|
9 |
4
|
adantr |
|
10 |
|
xmulcl |
|
11 |
8 9 10
|
sylancr |
|
12 |
|
simpl3r |
|
13 |
|
0lepnf |
|
14 |
|
xmulge0 |
|
15 |
8 13 14
|
mpanl12 |
|
16 |
4 12 15
|
syl2an2r |
|
17 |
|
ge0nemnf |
|
18 |
11 16 17
|
syl2anc |
|
19 |
18
|
adantr |
|
20 |
|
xaddpnf2 |
|
21 |
11 19 20
|
syl2an2r |
|
22 |
|
oveq1 |
|
23 |
|
oveq1 |
|
24 |
22 23
|
oveq12d |
|
25 |
|
xmulpnf2 |
|
26 |
2 25
|
sylan |
|
27 |
26
|
oveq1d |
|
28 |
24 27
|
sylan9eqr |
|
29 |
|
oveq1 |
|
30 |
|
xaddcl |
|
31 |
2 4 30
|
syl2anc |
|
32 |
|
0xr |
|
33 |
32
|
a1i |
|
34 |
2
|
adantr |
|
35 |
31
|
adantr |
|
36 |
|
simpr |
|
37 |
34
|
xaddid1d |
|
38 |
|
xleadd2a |
|
39 |
33 9 34 12 38
|
syl31anc |
|
40 |
37 39
|
eqbrtrrd |
|
41 |
33 34 35 36 40
|
xrltletrd |
|
42 |
|
xmulpnf2 |
|
43 |
31 41 42
|
syl2an2r |
|
44 |
29 43
|
sylan9eqr |
|
45 |
21 28 44
|
3eqtr4rd |
|
46 |
|
mnfxr |
|
47 |
|
xmulcl |
|
48 |
46 9 47
|
sylancr |
|
49 |
|
xmulneg1 |
|
50 |
46 9 49
|
sylancr |
|
51 |
|
xnegmnf |
|
52 |
51
|
oveq1i |
|
53 |
50 52
|
eqtr3di |
|
54 |
|
xnegpnf |
|
55 |
54
|
a1i |
|
56 |
53 55
|
eqeq12d |
|
57 |
|
xneg11 |
|
58 |
48 8 57
|
sylancl |
|
59 |
56 58
|
bitr3d |
|
60 |
59
|
necon3bid |
|
61 |
18 60
|
mpbid |
|
62 |
|
xaddmnf2 |
|
63 |
48 61 62
|
syl2anc |
|
64 |
63
|
adantr |
|
65 |
|
oveq1 |
|
66 |
|
oveq1 |
|
67 |
65 66
|
oveq12d |
|
68 |
|
xmulmnf2 |
|
69 |
2 68
|
sylan |
|
70 |
69
|
oveq1d |
|
71 |
67 70
|
sylan9eqr |
|
72 |
|
oveq1 |
|
73 |
|
xmulmnf2 |
|
74 |
31 41 73
|
syl2an2r |
|
75 |
72 74
|
sylan9eqr |
|
76 |
64 71 75
|
3eqtr4rd |
|
77 |
|
simpl1 |
|
78 |
|
elxr |
|
79 |
77 78
|
sylib |
|
80 |
7 45 76 79
|
mpjao3dan |
|
81 |
|
simp1 |
|
82 |
|
xmulcl |
|
83 |
81 4 82
|
syl2anc |
|
84 |
83
|
adantr |
|
85 |
|
xaddid2 |
|
86 |
84 85
|
syl |
|
87 |
|
oveq2 |
|
88 |
87
|
eqcomd |
|
89 |
|
xmul01 |
|
90 |
89
|
3ad2ant1 |
|
91 |
88 90
|
sylan9eqr |
|
92 |
91
|
oveq1d |
|
93 |
|
oveq1 |
|
94 |
93
|
eqcomd |
|
95 |
|
xaddid2 |
|
96 |
4 95
|
syl |
|
97 |
94 96
|
sylan9eqr |
|
98 |
97
|
oveq2d |
|
99 |
86 92 98
|
3eqtr4rd |
|
100 |
|
simp2r |
|
101 |
|
xrleloe |
|
102 |
32 2 101
|
sylancr |
|
103 |
100 102
|
mpbid |
|
104 |
80 99 103
|
mpjaodan |
|