Description: The operator norm is a bound on the size of an operator, even when it is infinite (using extended real multiplication). (Contributed by Mario Carneiro, 18-Oct-2015)
Ref | Expression | ||
---|---|---|---|
Hypotheses | nmofval.1 | |
|
nmoi.2 | |
||
nmoi.3 | |
||
nmoi.4 | |
||
Assertion | nmoix | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nmofval.1 | |
|
2 | nmoi.2 | |
|
3 | nmoi.3 | |
|
4 | nmoi.4 | |
|
5 | 1 | isnghm2 | |
6 | 5 | biimpar | |
7 | 1 2 3 4 | nmoi | |
8 | 6 7 | sylan | |
9 | 8 | an32s | |
10 | id | |
|
11 | 2 3 | nmcl | |
12 | 11 | 3ad2antl1 | |
13 | rexmul | |
|
14 | 10 12 13 | syl2anr | |
15 | 9 14 | breqtrrd | |
16 | fveq2 | |
|
17 | 16 | fveq2d | |
18 | fveq2 | |
|
19 | 18 | oveq2d | |
20 | 17 19 | breq12d | |
21 | simpl2 | |
|
22 | eqid | |
|
23 | 2 22 | ghmf | |
24 | 23 | ffvelcdmda | |
25 | 24 | 3ad2antl3 | |
26 | 22 4 | nmcl | |
27 | 21 25 26 | syl2anc | |
28 | 27 | adantr | |
29 | 28 | rexrd | |
30 | pnfge | |
|
31 | 29 30 | syl | |
32 | simp1 | |
|
33 | eqid | |
|
34 | 2 3 33 | nmrpcl | |
35 | 34 | 3expa | |
36 | 32 35 | sylanl1 | |
37 | rpxr | |
|
38 | rpgt0 | |
|
39 | xmulpnf2 | |
|
40 | 37 38 39 | syl2anc | |
41 | 36 40 | syl | |
42 | 31 41 | breqtrrd | |
43 | 0le0 | |
|
44 | simpl3 | |
|
45 | eqid | |
|
46 | 33 45 | ghmid | |
47 | 44 46 | syl | |
48 | 47 | fveq2d | |
49 | 4 45 | nm0 | |
50 | 21 49 | syl | |
51 | 48 50 | eqtrd | |
52 | simpl1 | |
|
53 | 3 33 | nm0 | |
54 | 52 53 | syl | |
55 | 54 | oveq2d | |
56 | pnfxr | |
|
57 | xmul01 | |
|
58 | 56 57 | ax-mp | |
59 | 55 58 | eqtrdi | |
60 | 51 59 | breq12d | |
61 | 43 60 | mpbiri | |
62 | 20 42 61 | pm2.61ne | |
63 | 62 | adantr | |
64 | simpr | |
|
65 | 64 | oveq1d | |
66 | 63 65 | breqtrrd | |
67 | 1 | nmocl | |
68 | 1 | nmoge0 | |
69 | ge0nemnf | |
|
70 | 67 68 69 | syl2anc | |
71 | 67 70 | jca | |
72 | xrnemnf | |
|
73 | 71 72 | sylib | |
74 | 73 | adantr | |
75 | 15 66 74 | mpjaodan | |