Proof of Theorem nmoleub
Step | Hyp | Ref
| Expression |
1 | | nmoleub.2 |
. . . . . . . . 9
⊢ (𝜑 → 𝑇 ∈ NrmGrp) |
2 | 1 | ad2antrr 723 |
. . . . . . . 8
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → 𝑇 ∈ NrmGrp) |
3 | | nmoleub.3 |
. . . . . . . . . . 11
⊢ (𝜑 → 𝐹 ∈ (𝑆 GrpHom 𝑇)) |
4 | | nmoi.2 |
. . . . . . . . . . . 12
⊢ 𝑉 = (Base‘𝑆) |
5 | | eqid 2738 |
. . . . . . . . . . . 12
⊢
(Base‘𝑇) =
(Base‘𝑇) |
6 | 4, 5 | ghmf 18838 |
. . . . . . . . . . 11
⊢ (𝐹 ∈ (𝑆 GrpHom 𝑇) → 𝐹:𝑉⟶(Base‘𝑇)) |
7 | 3, 6 | syl 17 |
. . . . . . . . . 10
⊢ (𝜑 → 𝐹:𝑉⟶(Base‘𝑇)) |
8 | 7 | ad2antrr 723 |
. . . . . . . . 9
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → 𝐹:𝑉⟶(Base‘𝑇)) |
9 | | simprl 768 |
. . . . . . . . 9
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → 𝑥 ∈ 𝑉) |
10 | | ffvelrn 6959 |
. . . . . . . . 9
⊢ ((𝐹:𝑉⟶(Base‘𝑇) ∧ 𝑥 ∈ 𝑉) → (𝐹‘𝑥) ∈ (Base‘𝑇)) |
11 | 8, 9, 10 | syl2anc 584 |
. . . . . . . 8
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝐹‘𝑥) ∈ (Base‘𝑇)) |
12 | | nmoi.4 |
. . . . . . . . 9
⊢ 𝑀 = (norm‘𝑇) |
13 | 5, 12 | nmcl 23772 |
. . . . . . . 8
⊢ ((𝑇 ∈ NrmGrp ∧ (𝐹‘𝑥) ∈ (Base‘𝑇)) → (𝑀‘(𝐹‘𝑥)) ∈ ℝ) |
14 | 2, 11, 13 | syl2anc 584 |
. . . . . . 7
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝑀‘(𝐹‘𝑥)) ∈ ℝ) |
15 | | nmoleub.1 |
. . . . . . . . 9
⊢ (𝜑 → 𝑆 ∈ NrmGrp) |
16 | 15 | adantr 481 |
. . . . . . . 8
⊢ ((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) → 𝑆 ∈ NrmGrp) |
17 | | nmoi.3 |
. . . . . . . . . 10
⊢ 𝐿 = (norm‘𝑆) |
18 | | nmoi2.z |
. . . . . . . . . 10
⊢ 0 =
(0g‘𝑆) |
19 | 4, 17, 18 | nmrpcl 23776 |
. . . . . . . . 9
⊢ ((𝑆 ∈ NrmGrp ∧ 𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 ) → (𝐿‘𝑥) ∈
ℝ+) |
20 | 19 | 3expb 1119 |
. . . . . . . 8
⊢ ((𝑆 ∈ NrmGrp ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝐿‘𝑥) ∈
ℝ+) |
21 | 16, 20 | sylan 580 |
. . . . . . 7
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝐿‘𝑥) ∈
ℝ+) |
22 | 14, 21 | rerpdivcld 12803 |
. . . . . 6
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ∈ ℝ) |
23 | 22 | rexrd 11025 |
. . . . 5
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ∈
ℝ*) |
24 | | nmofval.1 |
. . . . . . . 8
⊢ 𝑁 = (𝑆 normOp 𝑇) |
25 | 24 | nmocl 23884 |
. . . . . . 7
⊢ ((𝑆 ∈ NrmGrp ∧ 𝑇 ∈ NrmGrp ∧ 𝐹 ∈ (𝑆 GrpHom 𝑇)) → (𝑁‘𝐹) ∈
ℝ*) |
26 | 15, 1, 3, 25 | syl3anc 1370 |
. . . . . 6
⊢ (𝜑 → (𝑁‘𝐹) ∈
ℝ*) |
27 | 26 | ad2antrr 723 |
. . . . 5
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝑁‘𝐹) ∈
ℝ*) |
28 | | nmoleub.4 |
. . . . . 6
⊢ (𝜑 → 𝐴 ∈
ℝ*) |
29 | 28 | ad2antrr 723 |
. . . . 5
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → 𝐴 ∈
ℝ*) |
30 | 15, 1, 3 | 3jca 1127 |
. . . . . . 7
⊢ (𝜑 → (𝑆 ∈ NrmGrp ∧ 𝑇 ∈ NrmGrp ∧ 𝐹 ∈ (𝑆 GrpHom 𝑇))) |
31 | 30 | adantr 481 |
. . . . . 6
⊢ ((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) → (𝑆 ∈ NrmGrp ∧ 𝑇 ∈ NrmGrp ∧ 𝐹 ∈ (𝑆 GrpHom 𝑇))) |
32 | 24, 4, 17, 12, 18 | nmoi2 23894 |
. . . . . 6
⊢ (((𝑆 ∈ NrmGrp ∧ 𝑇 ∈ NrmGrp ∧ 𝐹 ∈ (𝑆 GrpHom 𝑇)) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ (𝑁‘𝐹)) |
33 | 31, 32 | sylan 580 |
. . . . 5
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ (𝑁‘𝐹)) |
34 | | simplr 766 |
. . . . 5
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → (𝑁‘𝐹) ≤ 𝐴) |
35 | 23, 27, 29, 33, 34 | xrletrd 12896 |
. . . 4
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ (𝑥 ∈ 𝑉 ∧ 𝑥 ≠ 0 )) → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) |
36 | 35 | expr 457 |
. . 3
⊢ (((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) ∧ 𝑥 ∈ 𝑉) → (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) |
37 | 36 | ralrimiva 3103 |
. 2
⊢ ((𝜑 ∧ (𝑁‘𝐹) ≤ 𝐴) → ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) |
38 | | 0le0 12074 |
. . . . . . . . . . 11
⊢ 0 ≤
0 |
39 | | simpllr 773 |
. . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → 𝐴 ∈ ℝ) |
40 | 39 | recnd 11003 |
. . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → 𝐴 ∈ ℂ) |
41 | 40 | mul01d 11174 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝐴 · 0) =
0) |
42 | 38, 41 | breqtrrid 5112 |
. . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → 0 ≤ (𝐴 · 0)) |
43 | | fveq2 6774 |
. . . . . . . . . . . . 13
⊢ (𝑥 = 0 → (𝐹‘𝑥) = (𝐹‘ 0 )) |
44 | 3 | ad2antrr 723 |
. . . . . . . . . . . . . 14
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → 𝐹 ∈ (𝑆 GrpHom 𝑇)) |
45 | | eqid 2738 |
. . . . . . . . . . . . . . 15
⊢
(0g‘𝑇) = (0g‘𝑇) |
46 | 18, 45 | ghmid 18840 |
. . . . . . . . . . . . . 14
⊢ (𝐹 ∈ (𝑆 GrpHom 𝑇) → (𝐹‘ 0 ) =
(0g‘𝑇)) |
47 | 44, 46 | syl 17 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → (𝐹‘ 0 ) =
(0g‘𝑇)) |
48 | 43, 47 | sylan9eqr 2800 |
. . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝐹‘𝑥) = (0g‘𝑇)) |
49 | 48 | fveq2d 6778 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝑀‘(𝐹‘𝑥)) = (𝑀‘(0g‘𝑇))) |
50 | 1 | ad3antrrr 727 |
. . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → 𝑇 ∈ NrmGrp) |
51 | 12, 45 | nm0 23785 |
. . . . . . . . . . . 12
⊢ (𝑇 ∈ NrmGrp → (𝑀‘(0g‘𝑇)) = 0) |
52 | 50, 51 | syl 17 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝑀‘(0g‘𝑇)) = 0) |
53 | 49, 52 | eqtrd 2778 |
. . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝑀‘(𝐹‘𝑥)) = 0) |
54 | | fveq2 6774 |
. . . . . . . . . . . 12
⊢ (𝑥 = 0 → (𝐿‘𝑥) = (𝐿‘ 0 )) |
55 | 15 | ad2antrr 723 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → 𝑆 ∈ NrmGrp) |
56 | 17, 18 | nm0 23785 |
. . . . . . . . . . . . 13
⊢ (𝑆 ∈ NrmGrp → (𝐿‘ 0 ) = 0) |
57 | 55, 56 | syl 17 |
. . . . . . . . . . . 12
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → (𝐿‘ 0 ) = 0) |
58 | 54, 57 | sylan9eqr 2800 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝐿‘𝑥) = 0) |
59 | 58 | oveq2d 7291 |
. . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝐴 · (𝐿‘𝑥)) = (𝐴 · 0)) |
60 | 42, 53, 59 | 3brtr4d 5106 |
. . . . . . . . 9
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥))) |
61 | 60 | a1d 25 |
. . . . . . . 8
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 = 0 ) → ((𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) → (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
62 | | simpr 485 |
. . . . . . . . 9
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → 𝑥 ≠ 0 ) |
63 | 1 | ad2antrr 723 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → 𝑇 ∈ NrmGrp) |
64 | 7 | adantr 481 |
. . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 𝐹:𝑉⟶(Base‘𝑇)) |
65 | 64, 10 | sylan 580 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → (𝐹‘𝑥) ∈ (Base‘𝑇)) |
66 | 63, 65, 13 | syl2anc 584 |
. . . . . . . . . . . 12
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → (𝑀‘(𝐹‘𝑥)) ∈ ℝ) |
67 | 66 | adantr 481 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → (𝑀‘(𝐹‘𝑥)) ∈ ℝ) |
68 | | simpllr 773 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → 𝐴 ∈ ℝ) |
69 | 15 | adantr 481 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 𝑆 ∈ NrmGrp) |
70 | 19 | 3expa 1117 |
. . . . . . . . . . . 12
⊢ (((𝑆 ∈ NrmGrp ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → (𝐿‘𝑥) ∈
ℝ+) |
71 | 69, 70 | sylanl1 677 |
. . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → (𝐿‘𝑥) ∈
ℝ+) |
72 | 67, 68, 71 | ledivmul2d 12826 |
. . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → (((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴 ↔ (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
73 | 72 | biimpd 228 |
. . . . . . . . 9
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → (((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴 → (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
74 | 62, 73 | embantd 59 |
. . . . . . . 8
⊢ ((((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) ∧ 𝑥 ≠ 0 ) → ((𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) → (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
75 | 61, 74 | pm2.61dane 3032 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ 𝑥 ∈ 𝑉) → ((𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) → (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
76 | 75 | ralimdva 3108 |
. . . . . 6
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → (∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) → ∀𝑥 ∈ 𝑉 (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)))) |
77 | 1 | adantr 481 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 𝑇 ∈ NrmGrp) |
78 | 3 | adantr 481 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 𝐹 ∈ (𝑆 GrpHom 𝑇)) |
79 | | simpr 485 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 𝐴 ∈ ℝ) |
80 | | nmoleub.5 |
. . . . . . . 8
⊢ (𝜑 → 0 ≤ 𝐴) |
81 | 80 | adantr 481 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → 0 ≤ 𝐴) |
82 | 24, 4, 17, 12 | nmolb 23881 |
. . . . . . 7
⊢ (((𝑆 ∈ NrmGrp ∧ 𝑇 ∈ NrmGrp ∧ 𝐹 ∈ (𝑆 GrpHom 𝑇)) ∧ 𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) → (∀𝑥 ∈ 𝑉 (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)) → (𝑁‘𝐹) ≤ 𝐴)) |
83 | 69, 77, 78, 79, 81, 82 | syl311anc 1383 |
. . . . . 6
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → (∀𝑥 ∈ 𝑉 (𝑀‘(𝐹‘𝑥)) ≤ (𝐴 · (𝐿‘𝑥)) → (𝑁‘𝐹) ≤ 𝐴)) |
84 | 76, 83 | syld 47 |
. . . . 5
⊢ ((𝜑 ∧ 𝐴 ∈ ℝ) → (∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴) → (𝑁‘𝐹) ≤ 𝐴)) |
85 | 84 | imp 407 |
. . . 4
⊢ (((𝜑 ∧ 𝐴 ∈ ℝ) ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) → (𝑁‘𝐹) ≤ 𝐴) |
86 | 85 | an32s 649 |
. . 3
⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) ∧ 𝐴 ∈ ℝ) → (𝑁‘𝐹) ≤ 𝐴) |
87 | 26 | ad2antrr 723 |
. . . . 5
⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) ∧ 𝐴 = +∞) → (𝑁‘𝐹) ∈
ℝ*) |
88 | | pnfge 12866 |
. . . . 5
⊢ ((𝑁‘𝐹) ∈ ℝ* → (𝑁‘𝐹) ≤ +∞) |
89 | 87, 88 | syl 17 |
. . . 4
⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) ∧ 𝐴 = +∞) → (𝑁‘𝐹) ≤ +∞) |
90 | | simpr 485 |
. . . 4
⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) ∧ 𝐴 = +∞) → 𝐴 = +∞) |
91 | 89, 90 | breqtrrd 5102 |
. . 3
⊢ (((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) ∧ 𝐴 = +∞) → (𝑁‘𝐹) ≤ 𝐴) |
92 | | ge0nemnf 12907 |
. . . . . . 7
⊢ ((𝐴 ∈ ℝ*
∧ 0 ≤ 𝐴) →
𝐴 ≠
-∞) |
93 | 28, 80, 92 | syl2anc 584 |
. . . . . 6
⊢ (𝜑 → 𝐴 ≠ -∞) |
94 | 28, 93 | jca 512 |
. . . . 5
⊢ (𝜑 → (𝐴 ∈ ℝ* ∧ 𝐴 ≠
-∞)) |
95 | | xrnemnf 12853 |
. . . . 5
⊢ ((𝐴 ∈ ℝ*
∧ 𝐴 ≠ -∞)
↔ (𝐴 ∈ ℝ
∨ 𝐴 =
+∞)) |
96 | 94, 95 | sylib 217 |
. . . 4
⊢ (𝜑 → (𝐴 ∈ ℝ ∨ 𝐴 = +∞)) |
97 | 96 | adantr 481 |
. . 3
⊢ ((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) → (𝐴 ∈ ℝ ∨ 𝐴 = +∞)) |
98 | 86, 91, 97 | mpjaodan 956 |
. 2
⊢ ((𝜑 ∧ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴)) → (𝑁‘𝐹) ≤ 𝐴) |
99 | 37, 98 | impbida 798 |
1
⊢ (𝜑 → ((𝑁‘𝐹) ≤ 𝐴 ↔ ∀𝑥 ∈ 𝑉 (𝑥 ≠ 0 → ((𝑀‘(𝐹‘𝑥)) / (𝐿‘𝑥)) ≤ 𝐴))) |