Step |
Hyp |
Ref |
Expression |
1 |
|
simpl |
|
2 |
|
metidss |
|
3 |
|
dmss |
|
4 |
2 3
|
syl |
|
5 |
|
dmxpid |
|
6 |
4 5
|
sseqtrdi |
|
7 |
1 6
|
syl |
|
8 |
|
xpss |
|
9 |
2 8
|
sstrdi |
|
10 |
|
df-rel |
|
11 |
9 10
|
sylibr |
|
12 |
1 11
|
syl |
|
13 |
|
simprl |
|
14 |
|
releldm |
|
15 |
12 13 14
|
syl2anc |
|
16 |
7 15
|
sseldd |
|
17 |
|
simprr |
|
18 |
|
releldm |
|
19 |
12 17 18
|
syl2anc |
|
20 |
7 19
|
sseldd |
|
21 |
|
psmetsym |
|
22 |
1 16 20 21
|
syl3anc |
|
23 |
|
psmetf |
|
24 |
23
|
fovrnda |
|
25 |
1 20 16 24
|
syl12anc |
|
26 |
22 25
|
eqeltrd |
|
27 |
|
rnss |
|
28 |
2 27
|
syl |
|
29 |
|
rnxpid |
|
30 |
28 29
|
sseqtrdi |
|
31 |
1 30
|
syl |
|
32 |
|
relelrn |
|
33 |
12 13 32
|
syl2anc |
|
34 |
31 33
|
sseldd |
|
35 |
23
|
fovrnda |
|
36 |
1 34 20 35
|
syl12anc |
|
37 |
|
relelrn |
|
38 |
12 17 37
|
syl2anc |
|
39 |
31 38
|
sseldd |
|
40 |
|
psmetsym |
|
41 |
1 39 34 40
|
syl3anc |
|
42 |
23
|
fovrnda |
|
43 |
1 39 34 42
|
syl12anc |
|
44 |
41 43
|
eqeltrrd |
|
45 |
|
psmettri2 |
|
46 |
1 34 16 20 45
|
syl13anc |
|
47 |
|
psmetsym |
|
48 |
1 16 34 47
|
syl3anc |
|
49 |
16 34
|
jca |
|
50 |
|
metidv |
|
51 |
50
|
biimpa |
|
52 |
1 49 13 51
|
syl21anc |
|
53 |
48 52
|
eqtr3d |
|
54 |
53
|
oveq1d |
|
55 |
|
xaddid2 |
|
56 |
36 55
|
syl |
|
57 |
54 56
|
eqtrd |
|
58 |
46 57
|
breqtrd |
|
59 |
|
psmettri2 |
|
60 |
1 39 34 20 59
|
syl13anc |
|
61 |
|
psmetsym |
|
62 |
1 39 20 61
|
syl3anc |
|
63 |
20 39
|
jca |
|
64 |
|
metidv |
|
65 |
64
|
biimpa |
|
66 |
1 63 17 65
|
syl21anc |
|
67 |
62 66
|
eqtrd |
|
68 |
67
|
oveq2d |
|
69 |
|
xaddid1 |
|
70 |
43 69
|
syl |
|
71 |
68 70 41
|
3eqtrd |
|
72 |
60 71
|
breqtrd |
|
73 |
26 36 44 58 72
|
xrletrd |
|
74 |
23
|
fovrnda |
|
75 |
1 16 39 74
|
syl12anc |
|
76 |
|
psmettri2 |
|
77 |
1 16 34 39 76
|
syl13anc |
|
78 |
52
|
oveq1d |
|
79 |
|
xaddid2 |
|
80 |
75 79
|
syl |
|
81 |
78 80
|
eqtrd |
|
82 |
77 81
|
breqtrd |
|
83 |
|
psmettri2 |
|
84 |
1 20 16 39 83
|
syl13anc |
|
85 |
|
xaddid1 |
|
86 |
25 85
|
syl |
|
87 |
66
|
oveq2d |
|
88 |
86 87 22
|
3eqtr4d |
|
89 |
84 88
|
breqtrd |
|
90 |
44 75 26 82 89
|
xrletrd |
|
91 |
|
xrletri3 |
|
92 |
26 44 91
|
syl2anc |
|
93 |
73 90 92
|
mpbir2and |
|