Proof of Theorem nmlnop0ALT
| Step | Hyp | Ref
| Expression |
| 1 | | recne0t 5739 |
. . . . . . . . . . . . . 14
⊢ (((normh
‘x) ∈ ℂ ⋀ (normh ‘x) ≠ 0) → (1 / (normh
‘x)) ≠ 0) |
| 2 | | normclt 8986 |
. . . . . . . . . . . . . . . 16
⊢ (x ∈ ℋ → (normh ‘x) ∈ ℝ) |
| 3 | 2 | recnd 5327 |
. . . . . . . . . . . . . . 15
⊢ (x ∈ ℋ → (normh ‘x) ∈ ℂ) |
| 4 | 3 | adantr 391 |
. . . . . . . . . . . . . 14
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘x) ∈ ℂ) |
| 5 | | norm-it 8991 |
. . . . . . . . . . . . . . . . 17
⊢ (x ∈ ℋ → ((normh ‘x) = 0 ↔ x
= 0h)) |
| 6 | | fveq2 3730 |
. . . . . . . . . . . . . . . . . 18
⊢ (x = 0h → (T ‘x) =
(T ‘0h)) |
| 7 | | nmlnop0.1 |
. . . . . . . . . . . . . . . . . . 19
⊢ T ∈
LinOp |
| 8 | 7 | lnop0 9889 |
. . . . . . . . . . . . . . . . . 18
⊢ (T ‘0h) =
0h |
| 9 | 6, 8 | syl6eq 1526 |
. . . . . . . . . . . . . . . . 17
⊢ (x = 0h → (T ‘x) =
0h) |
| 10 | 5, 9 | syl6bi 214 |
. . . . . . . . . . . . . . . 16
⊢ (x ∈ ℋ → ((normh ‘x) = 0 → (T
‘x) =
0h)) |
| 11 | 10 | necon3d 1607 |
. . . . . . . . . . . . . . 15
⊢ (x ∈ ℋ → ((T
‘x) ≠ 0h →
(normh ‘x) ≠
0)) |
| 12 | 11 | imp 350 |
. . . . . . . . . . . . . 14
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘x) ≠ 0) |
| 13 | 1, 4, 12 | sylanc 473 |
. . . . . . . . . . . . 13
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (1 / (normh ‘x)) ≠ 0) |
| 14 | | pm3.27 323 |
. . . . . . . . . . . . 13
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (T
‘x) ≠
0h) |
| 15 | 13, 14 | jca 288 |
. . . . . . . . . . . 12
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((1 / (normh ‘x)) ≠ 0 ⋀
(T ‘x) ≠ 0h)) |
| 16 | | hvmul0ort 8889 |
. . . . . . . . . . . . . . 15
⊢ (((1 /
(normh ‘x)) ∈ ℂ ⋀ (T
‘x) ∈ ℋ ) →
(((1 / (normh ‘x))
·h (T
‘x)) = 0h ↔
((1 / (normh ‘x)) =
0 ⋁ (T
‘x) =
0h))) |
| 17 | | recclt 5727 |
. . . . . . . . . . . . . . . 16
⊢ (((normh
‘x) ∈ ℂ ⋀ (normh ‘x) ≠ 0) → (1 / (normh
‘x)) ∈ ℂ) |
| 18 | 17, 4, 12 | sylanc 473 |
. . . . . . . . . . . . . . 15
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (1 / (normh ‘x)) ∈ ℂ) |
| 19 | 7 | lnopf 9888 |
. . . . . . . . . . . . . . . . 17
⊢ T: ℋ
–→ ℋ |
| 20 | 19 | ffvelrni 3821 |
. . . . . . . . . . . . . . . 16
⊢ (x ∈ ℋ → (T
‘x) ∈ ℋ ) |
| 21 | 20 | adantr 391 |
. . . . . . . . . . . . . . 15
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (T
‘x) ∈ ℋ ) |
| 22 | 16, 18, 21 | sylanc 473 |
. . . . . . . . . . . . . 14
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (((1 / (normh ‘x)) ·h (T ‘x)) =
0h ↔ ((1 / (normh ‘x)) = 0 ⋁
(T ‘x) = 0h))) |
| 23 | 22 | necon3abid 1602 |
. . . . . . . . . . . . 13
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (((1 / (normh ‘x)) ·h (T ‘x))
≠ 0h ↔ ¬ ((1 / (normh
‘x)) = 0 ⋁ (T
‘x) =
0h))) |
| 24 | | neanior 1642 |
. . . . . . . . . . . . 13
⊢ (((1 /
(normh ‘x)) ≠ 0
⋀ (T
‘x) ≠ 0h) ↔
¬ ((1 / (normh ‘x)) = 0 ⋁
(T ‘x) = 0h)) |
| 25 | 23, 24 | syl6bbr 540 |
. . . . . . . . . . . 12
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (((1 / (normh ‘x)) ·h (T ‘x))
≠ 0h ↔ ((1 / (normh ‘x)) ≠ 0 ⋀
(T ‘x) ≠ 0h))) |
| 26 | 15, 25 | mpbird 196 |
. . . . . . . . . . 11
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((1 / (normh ‘x)) ·h (T ‘x))
≠ 0h) |
| 27 | | hvmulclt 8878 |
. . . . . . . . . . . . 13
⊢ (((1 /
(normh ‘x)) ∈ ℂ ⋀ (T
‘x) ∈ ℋ ) → ((1
/ (normh ‘x))
·h (T
‘x)) ∈ ℋ ) |
| 28 | 27, 18, 21 | sylanc 473 |
. . . . . . . . . . . 12
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((1 / (normh ‘x)) ·h (T ‘x))
∈ ℋ
) |
| 29 | | normgt0t 8989 |
. . . . . . . . . . . 12
⊢ (((1 /
(normh ‘x))
·h (T
‘x)) ∈ ℋ → (((1
/ (normh ‘x))
·h (T
‘x)) ≠ 0h ↔
0 < (normh ‘((1 / (normh
‘x))
·h (T
‘x))))) |
| 30 | 28, 29 | syl 10 |
. . . . . . . . . . 11
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (((1 / (normh ‘x)) ·h (T ‘x))
≠ 0h ↔ 0 < (normh ‘((1 /
(normh ‘x))
·h (T
‘x))))) |
| 31 | 26, 30 | mpbid 195 |
. . . . . . . . . 10
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → 0 < (normh ‘((1 /
(normh ‘x))
·h (T
‘x)))) |
| 32 | 31 | ex 373 |
. . . . . . . . 9
⊢ (x ∈ ℋ → ((T
‘x) ≠ 0h →
0 < (normh ‘((1 / (normh
‘x))
·h (T
‘x))))) |
| 33 | 32 | adantl 390 |
. . . . . . . 8
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) →
((T ‘x) ≠ 0h → 0 <
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))))) |
| 34 | | fveq2 3730 |
. . . . . . . . . . . . . . . . . 18
⊢ (z = ((1 / (normh ‘x)) ·h x) → (normh ‘z) = (normh ‘((1 /
(normh ‘x))
·h x))) |
| 35 | 34 | breq1d 2634 |
. . . . . . . . . . . . . . . . 17
⊢ (z = ((1 / (normh ‘x)) ·h x) → ((normh ‘z) ≤ 1 ↔ (normh ‘((1
/ (normh ‘x))
·h x)) ≤
1)) |
| 36 | | fveq2 3730 |
. . . . . . . . . . . . . . . . . . 19
⊢ (z = ((1 / (normh ‘x)) ·h x) → (T
‘z) = (T ‘((1 / (normh
‘x))
·h x))) |
| 37 | 36 | fveq2d 3734 |
. . . . . . . . . . . . . . . . . 18
⊢ (z = ((1 / (normh ‘x)) ·h x) → (normh ‘(T ‘z)) =
(normh ‘(T
‘((1 / (normh ‘x)) ·h x)))) |
| 38 | 37 | eqeq2d 1489 |
. . . . . . . . . . . . . . . . 17
⊢ (z = ((1 / (normh ‘x)) ·h x) → ((normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘z)) ↔ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘((1 /
(normh ‘x))
·h x))))) |
| 39 | 35, 38 | anbi12d 630 |
. . . . . . . . . . . . . . . 16
⊢ (z = ((1 / (normh ‘x)) ·h x) → (((normh ‘z) ≤ 1 ⋀
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))) =
(normh ‘(T
‘z))) ↔
((normh ‘((1 / (normh ‘x)) ·h x)) ≤ 1 ⋀
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))) =
(normh ‘(T
‘((1 / (normh ‘x)) ·h x)))))) |
| 40 | 39 | rcla4ev 1880 |
. . . . . . . . . . . . . . 15
⊢ ((((1 /
(normh ‘x))
·h x) ∈ ℋ ⋀ ((normh ‘((1 /
(normh ‘x))
·h x)) ≤
1 ⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘((1 /
(normh ‘x))
·h x)))))
→ ∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))) =
(normh ‘(T
‘z)))) |
| 41 | | hvmulclt 8878 |
. . . . . . . . . . . . . . . 16
⊢ (((1 /
(normh ‘x)) ∈ ℂ ⋀ x ∈ ℋ ) → ((1
/ (normh ‘x))
·h x) ∈ ℋ ) |
| 42 | | pm3.26 319 |
. . . . . . . . . . . . . . . 16
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → x ∈ ℋ ) |
| 43 | 41, 18, 42 | sylanc 473 |
. . . . . . . . . . . . . . 15
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((1 / (normh ‘x)) ·h x) ∈ ℋ ) |
| 44 | | eqlet 5583 |
. . . . . . . . . . . . . . . . 17
⊢ (((normh
‘((1 / (normh ‘x)) ·h x)) ∈ ℝ ⋀
(normh ‘((1 / (normh ‘x)) ·h x)) = 1) → (normh ‘((1
/ (normh ‘x))
·h x)) ≤
1) |
| 45 | | norm1t 9116 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((x ∈ ℋ ⋀ x ≠ 0h) →
(normh ‘((1 / (normh ‘x)) ·h x)) = 1) |
| 46 | 9 | necon3i 1608 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((T ‘x) ≠
0h → x ≠
0h) |
| 47 | 45, 46 | sylan2 453 |
. . . . . . . . . . . . . . . . . 18
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h x)) =
1) |
| 48 | | 1re 5447 |
. . . . . . . . . . . . . . . . . 18
⊢ 1 ∈ ℝ |
| 49 | 47, 48 | syl6eqel 1559 |
. . . . . . . . . . . . . . . . 17
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h x))
∈ ℝ) |
| 50 | 44, 49, 47 | sylanc 473 |
. . . . . . . . . . . . . . . 16
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h x)) ≤
1) |
| 51 | 7 | lnopmul 9891 |
. . . . . . . . . . . . . . . . . . 19
⊢ (((1 /
(normh ‘x)) ∈ ℂ ⋀ x ∈ ℋ ) →
(T ‘((1 / (normh
‘x))
·h x)) =
((1 / (normh ‘x))
·h (T
‘x))) |
| 52 | 51, 18, 42 | sylanc 473 |
. . . . . . . . . . . . . . . . . 18
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (T ‘((1
/ (normh ‘x))
·h x)) =
((1 / (normh ‘x))
·h (T
‘x))) |
| 53 | 52 | eqcomd 1483 |
. . . . . . . . . . . . . . . . 17
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((1 / (normh ‘x)) ·h (T ‘x)) =
(T ‘((1 / (normh
‘x))
·h x))) |
| 54 | 53 | fveq2d 3734 |
. . . . . . . . . . . . . . . 16
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘((1 /
(normh ‘x))
·h x)))) |
| 55 | 50, 54 | jca 288 |
. . . . . . . . . . . . . . 15
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((normh ‘((1 /
(normh ‘x))
·h x)) ≤
1 ⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘((1 /
(normh ‘x))
·h x))))) |
| 56 | 40, 43, 55 | sylanc 473 |
. . . . . . . . . . . . . 14
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))) =
(normh ‘(T
‘z)))) |
| 57 | | fvex 3738 |
. . . . . . . . . . . . . . 15
⊢ (normh
‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ V |
| 58 | | eqeq1 1484 |
. . . . . . . . . . . . . . . . 17
⊢ (y = (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) → (y = (normh ‘(T ‘z))
↔ (normh ‘((1 / (normh
‘x))
·h (T
‘x))) = (normh
‘(T ‘z)))) |
| 59 | 58 | anbi2d 618 |
. . . . . . . . . . . . . . . 16
⊢ (y = (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) →
(((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z))) ↔
((normh ‘z) ≤ 1
⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘z))))) |
| 60 | 59 | rexbidv 1667 |
. . . . . . . . . . . . . . 15
⊢ (y = (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) → (∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z))) ↔ ∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘z))))) |
| 61 | 57, 60 | elab 1900 |
. . . . . . . . . . . . . 14
⊢ ((normh
‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ {y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))} ↔ ∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) = (normh
‘(T ‘z)))) |
| 62 | 56, 61 | sylibr 200 |
. . . . . . . . . . . . 13
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ∈ {y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))}) |
| 63 | | nmopsetretHIL 9786 |
. . . . . . . . . . . . . . . 16
⊢ (T: ℋ
–→ ℋ → {y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))} ⊆ ℝ) |
| 64 | 19, 63 | ax-mp 7 |
. . . . . . . . . . . . . . 15
⊢ {y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))} ⊆ ℝ |
| 65 | | ressxr 5510 |
. . . . . . . . . . . . . . 15
⊢ ℝ ⊆ ℝ* |
| 66 | 64, 65 | sstri 2076 |
. . . . . . . . . . . . . 14
⊢ {y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))} ⊆ ℝ* |
| 67 | | supxrub 6100 |
. . . . . . . . . . . . . 14
⊢ (({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))} ⊆ ℝ*
⋀ (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ∈ {y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))}) → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ≤ sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < )) |
| 68 | 66, 67 | mpan 697 |
. . . . . . . . . . . . 13
⊢ ((normh
‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ {y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))} → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ≤ sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < )) |
| 69 | 62, 68 | syl 10 |
. . . . . . . . . . . 12
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ≤ sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < )) |
| 70 | 69 | adantll 394 |
. . . . . . . . . . 11
⊢ ((((normop
‘T) = 0 ⋀ x ∈ ℋ ) ⋀ (T
‘x) ≠ 0h) →
(normh ‘((1 / (normh ‘x)) ·h (T ‘x)))
≤ sup({y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))}, ℝ*, < )) |
| 71 | | nmopvalt 9777 |
. . . . . . . . . . . . . . 15
⊢ (T: ℋ
–→ ℋ → (normop
‘T) = sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < )) |
| 72 | 19, 71 | ax-mp 7 |
. . . . . . . . . . . . . 14
⊢ (normop
‘T) = sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < ) |
| 73 | 72 | eqeq1i 1485 |
. . . . . . . . . . . . 13
⊢ ((normop
‘T) = 0 ↔ sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < ) = 0) |
| 74 | 73 | biimp 151 |
. . . . . . . . . . . 12
⊢ ((normop
‘T) = 0 → sup({y∣∃z ∈ ℋ
((normh ‘z) ≤ 1
⋀ y =
(normh ‘(T
‘z)))}, ℝ*, < ) = 0) |
| 75 | 74 | ad2antrr 406 |
. . . . . . . . . . 11
⊢ ((((normop
‘T) = 0 ⋀ x ∈ ℋ ) ⋀ (T
‘x) ≠ 0h) →
sup({y∣∃z ∈ ℋ ((normh ‘z) ≤ 1 ⋀
y = (normh
‘(T ‘z)))}, ℝ*, < ) = 0) |
| 76 | 70, 75 | breqtrd 2644 |
. . . . . . . . . 10
⊢ ((((normop
‘T) = 0 ⋀ x ∈ ℋ ) ⋀ (T
‘x) ≠ 0h) →
(normh ‘((1 / (normh ‘x)) ·h (T ‘x)))
≤ 0) |
| 77 | | normclt 8986 |
. . . . . . . . . . . . 13
⊢ (((1 /
(normh ‘x))
·h (T
‘x)) ∈ ℋ →
(normh ‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ ℝ) |
| 78 | 28, 77 | syl 10 |
. . . . . . . . . . . 12
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → (normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ∈ ℝ) |
| 79 | | 0re 5452 |
. . . . . . . . . . . . 13
⊢ 0 ∈ ℝ |
| 80 | | lenltt 5522 |
. . . . . . . . . . . . 13
⊢ (((normh
‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ ℝ ⋀ 0 ∈ ℝ) → ((normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ≤ 0 ↔ ¬ 0 <
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))))) |
| 81 | 79, 80 | mpan2 698 |
. . . . . . . . . . . 12
⊢ ((normh
‘((1 / (normh ‘x)) ·h (T ‘x)))
∈ ℝ →
((normh ‘((1 / (normh ‘x)) ·h (T ‘x)))
≤ 0 ↔ ¬ 0 < (normh ‘((1 /
(normh ‘x))
·h (T
‘x))))) |
| 82 | 78, 81 | syl 10 |
. . . . . . . . . . 11
⊢ ((x ∈ ℋ ⋀ (T ‘x) ≠
0h) → ((normh ‘((1 /
(normh ‘x))
·h (T
‘x))) ≤ 0 ↔ ¬ 0 <
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))))) |
| 83 | 82 | adantll 394 |
. . . . . . . . . 10
⊢ ((((normop
‘T) = 0 ⋀ x ∈ ℋ ) ⋀ (T
‘x) ≠ 0h) →
((normh ‘((1 / (normh ‘x)) ·h (T ‘x)))
≤ 0 ↔ ¬ 0 < (normh ‘((1 /
(normh ‘x))
·h (T
‘x))))) |
| 84 | 76, 83 | mpbid 195 |
. . . . . . . . 9
⊢ ((((normop
‘T) = 0 ⋀ x ∈ ℋ ) ⋀ (T
‘x) ≠ 0h) →
¬ 0 < (normh ‘((1 / (normh
‘x))
·h (T
‘x)))) |
| 85 | 84 | ex 373 |
. . . . . . . 8
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) →
((T ‘x) ≠ 0h → ¬ 0 <
(normh ‘((1 / (normh ‘x)) ·h (T ‘x))))) |
| 86 | 33, 85 | pm2.65d 136 |
. . . . . . 7
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) →
¬ (T ‘x) ≠ 0h) |
| 87 | | nne 1592 |
. . . . . . 7
⊢ (¬ (T ‘x) ≠
0h ↔ (T
‘x) = 0h) |
| 88 | 86, 87 | sylib 198 |
. . . . . 6
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) →
(T ‘x) = 0h) |
| 89 | | ho0valt 9671 |
. . . . . . 7
⊢ (x ∈ ℋ → ( 0hop ‘x) = 0h) |
| 90 | 89 | adantl 390 |
. . . . . 6
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) → (
0hop ‘x) =
0h) |
| 91 | 88, 90 | eqtr4d 1513 |
. . . . 5
⊢ (((normop
‘T) = 0 ⋀ x ∈ ℋ ) →
(T ‘x) = ( 0hop ‘x)) |
| 92 | 91 | r19.21aiva 1717 |
. . . 4
⊢ ((normop
‘T) = 0 → ∀x ∈ ℋ (T ‘x) = (
0hop ‘x)) |
| 93 | | eqid 1478 |
. . . 4
⊢ ℋ = ℋ |
| 94 | 92, 93 | jctil 292 |
. . 3
⊢ ((normop
‘T) = 0 → ( ℋ = ℋ ⋀ ∀x ∈ ℋ (T
‘x) = ( 0hop
‘x))) |
| 95 | | ffn 3633 |
. . . . 5
⊢ (T: ℋ
–→ ℋ → T Fn ℋ
) |
| 96 | 19, 95 | ax-mp 7 |
. . . 4
⊢ T Fn ℋ |
| 97 | | ho0f 9672 |
. . . . 5
⊢ 0hop : ℋ –→ ℋ |
| 98 | | ffn 3633 |
. . . . 5
⊢ ( 0hop : ℋ –→ ℋ → 0hop Fn ℋ ) |
| 99 | 97, 98 | ax-mp 7 |
. . . 4
⊢ 0hop Fn ℋ |
| 100 | | eqfnfv 3803 |
. . . 4
⊢ ((T Fn ℋ ⋀ 0hop Fn ℋ ) → (T
= 0hop ↔ ( ℋ = ℋ ⋀ ∀x ∈ ℋ (T ‘x) = (
0hop ‘x)))) |
| 101 | 96, 99, 100 | mp2an 699 |
. . 3
⊢ (T = 0hop ↔ ( ℋ = ℋ ⋀ ∀x ∈ ℋ (T
‘x) = ( 0hop
‘x))) |
| 102 | 94, 101 | sylibr 200 |
. 2
⊢ ((normop
‘T) = 0 → T = 0hop ) |
| 103 | | fveq2 3730 |
. . 3
⊢ (T = 0hop → (normop
‘T) = (normop ‘
0hop )) |
| 104 | | nmop0 9905 |
. . 3
⊢ (normop ‘
0hop ) = 0 |
| 105 | 103, 104 | syl6eq 1526 |
. 2
⊢ (T = 0hop → (normop
‘T) = 0) |
| 106 | 102, 105 | impbi 157 |
1
⊢ ((normop
‘T) = 0 ↔ T = 0hop ) |