Step |
Hyp |
Ref |
Expression |
1 |
|
xblss2.1 |
|
2 |
|
xblss2.2 |
|
3 |
|
xblss2.3 |
|
4 |
|
xblss2.4 |
|
5 |
|
xblss2.5 |
|
6 |
|
xblss2.6 |
|
7 |
|
xblss2.7 |
|
8 |
|
elbl |
|
9 |
1 2 4 8
|
syl3anc |
|
10 |
9
|
simprbda |
|
11 |
1
|
adantr |
|
12 |
3
|
adantr |
|
13 |
|
xmetcl |
|
14 |
11 12 10 13
|
syl3anc |
|
15 |
14
|
adantr |
|
16 |
6
|
adantr |
|
17 |
16
|
rexrd |
|
18 |
4
|
adantr |
|
19 |
17 18
|
xaddcld |
|
20 |
19
|
adantr |
|
21 |
5
|
ad2antrr |
|
22 |
2
|
adantr |
|
23 |
|
xmetcl |
|
24 |
11 22 10 23
|
syl3anc |
|
25 |
17 24
|
xaddcld |
|
26 |
|
xmettri2 |
|
27 |
11 22 12 10 26
|
syl13anc |
|
28 |
9
|
simplbda |
|
29 |
|
xltadd2 |
|
30 |
24 18 16 29
|
syl3anc |
|
31 |
28 30
|
mpbid |
|
32 |
14 25 19 27 31
|
xrlelttrd |
|
33 |
32
|
adantr |
|
34 |
5
|
adantr |
|
35 |
18
|
xnegcld |
|
36 |
34 35
|
xaddcld |
|
37 |
7
|
adantr |
|
38 |
|
xleadd1a |
|
39 |
17 36 18 37 38
|
syl31anc |
|
40 |
39
|
adantr |
|
41 |
|
xnpcan |
|
42 |
34 41
|
sylan |
|
43 |
40 42
|
breqtrd |
|
44 |
15 20 21 33 43
|
xrltletrd |
|
45 |
28
|
adantr |
|
46 |
7
|
ad2antrr |
|
47 |
|
0xr |
|
48 |
47
|
a1i |
|
49 |
|
xmetge0 |
|
50 |
11 22 12 49
|
syl3anc |
|
51 |
48 17 36 50 37
|
xrletrd |
|
52 |
|
ge0nemnf |
|
53 |
36 51 52
|
syl2anc |
|
54 |
53
|
adantr |
|
55 |
5
|
ad2antrr |
|
56 |
|
xaddmnf1 |
|
57 |
56
|
ex |
|
58 |
55 57
|
syl |
|
59 |
|
simpr |
|
60 |
|
xnegeq |
|
61 |
59 60
|
syl |
|
62 |
|
xnegpnf |
|
63 |
61 62
|
eqtrdi |
|
64 |
63
|
oveq2d |
|
65 |
64
|
eqeq1d |
|
66 |
58 65
|
sylibrd |
|
67 |
66
|
necon1d |
|
68 |
54 67
|
mpd |
|
69 |
68 63
|
oveq12d |
|
70 |
|
pnfaddmnf |
|
71 |
69 70
|
eqtrdi |
|
72 |
46 71
|
breqtrd |
|
73 |
50
|
biantrud |
|
74 |
|
xrletri3 |
|
75 |
17 47 74
|
sylancl |
|
76 |
|
xmeteq0 |
|
77 |
11 22 12 76
|
syl3anc |
|
78 |
73 75 77
|
3bitr2d |
|
79 |
78
|
adantr |
|
80 |
72 79
|
mpbid |
|
81 |
80
|
oveq1d |
|
82 |
59 68
|
eqtr4d |
|
83 |
45 81 82
|
3brtr3d |
|
84 |
|
xmetge0 |
|
85 |
11 22 10 84
|
syl3anc |
|
86 |
48 24 18 85 28
|
xrlelttrd |
|
87 |
48 18 86
|
xrltled |
|
88 |
|
ge0nemnf |
|
89 |
18 87 88
|
syl2anc |
|
90 |
18 89
|
jca |
|
91 |
|
xrnemnf |
|
92 |
90 91
|
sylib |
|
93 |
44 83 92
|
mpjaodan |
|
94 |
|
elbl |
|
95 |
11 12 34 94
|
syl3anc |
|
96 |
10 93 95
|
mpbir2and |
|
97 |
96
|
ex |
|
98 |
97
|
ssrdv |
|