Hilbert Space Explorer < Previous   Next > Nearby theorems Mirrors  >  Home  >  HSE Home  >  Th. List  >  cnlnadjlem2 Structured version   Visualization version   GIF version

 Description: Lemma for cnlnadji 29479. 𝐺 is a continuous linear functional. (Contributed by NM, 16-Feb-2006.) (New usage is discouraged.)
Hypotheses
Ref Expression
cnlnadjlem.3 𝐺 = (𝑔 ∈ ℋ ↦ ((𝑇𝑔) ·ih 𝑦))
Assertion
Ref Expression
cnlnadjlem2 (𝑦 ∈ ℋ → (𝐺 ∈ LinFn ∧ 𝐺 ∈ ContFn))
Distinct variable group:   𝑦,𝑔,𝑇
Allowed substitution hints:   𝐺(𝑦,𝑔)

Dummy variables 𝑤 𝑧 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 cnlnadjlem.1 . . . . . . . 8 𝑇 ∈ LinOp
21lnopfi 29372 . . . . . . 7 𝑇: ℋ⟶ ℋ
32ffvelrni 6607 . . . . . 6 (𝑔 ∈ ℋ → (𝑇𝑔) ∈ ℋ)
4 hicl 28481 . . . . . 6 (((𝑇𝑔) ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇𝑔) ·ih 𝑦) ∈ ℂ)
53, 4sylan 575 . . . . 5 ((𝑔 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇𝑔) ·ih 𝑦) ∈ ℂ)
65ancoms 452 . . . 4 ((𝑦 ∈ ℋ ∧ 𝑔 ∈ ℋ) → ((𝑇𝑔) ·ih 𝑦) ∈ ℂ)
7 cnlnadjlem.3 . . . 4 𝐺 = (𝑔 ∈ ℋ ↦ ((𝑇𝑔) ·ih 𝑦))
86, 7fmptd 6633 . . 3 (𝑦 ∈ ℋ → 𝐺: ℋ⟶ℂ)
9 hvmulcl 28414 . . . . . . 7 ((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) → (𝑥 · 𝑤) ∈ ℋ)
101lnopaddi 29374 . . . . . . . . . . . 12 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ) → (𝑇‘((𝑥 · 𝑤) + 𝑧)) = ((𝑇‘(𝑥 · 𝑤)) + (𝑇𝑧)))
11103adant3 1166 . . . . . . . . . . 11 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (𝑇‘((𝑥 · 𝑤) + 𝑧)) = ((𝑇‘(𝑥 · 𝑤)) + (𝑇𝑧)))
1211oveq1d 6920 . . . . . . . . . 10 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) + (𝑇𝑧)) ·ih 𝑦))
132ffvelrni 6607 . . . . . . . . . . 11 ((𝑥 · 𝑤) ∈ ℋ → (𝑇‘(𝑥 · 𝑤)) ∈ ℋ)
142ffvelrni 6607 . . . . . . . . . . 11 (𝑧 ∈ ℋ → (𝑇𝑧) ∈ ℋ)
15 id 22 . . . . . . . . . . 11 (𝑦 ∈ ℋ → 𝑦 ∈ ℋ)
16 ax-his2 28484 . . . . . . . . . . 11 (((𝑇‘(𝑥 · 𝑤)) ∈ ℋ ∧ (𝑇𝑧) ∈ ℋ ∧ 𝑦 ∈ ℋ) → (((𝑇‘(𝑥 · 𝑤)) + (𝑇𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
1713, 14, 15, 16syl3an 1203 . . . . . . . . . 10 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (((𝑇‘(𝑥 · 𝑤)) + (𝑇𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
1812, 17eqtrd 2861 . . . . . . . . 9 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
19183comr 1159 . . . . . . . 8 ((𝑦 ∈ ℋ ∧ (𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ) → ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
20193expa 1151 . . . . . . 7 (((𝑦 ∈ ℋ ∧ (𝑥 · 𝑤) ∈ ℋ) ∧ 𝑧 ∈ ℋ) → ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
219, 20sylanl2 671 . . . . . 6 (((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) ∧ 𝑧 ∈ ℋ) → ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
22 hvaddcl 28413 . . . . . . . . 9 (((𝑥 · 𝑤) ∈ ℋ ∧ 𝑧 ∈ ℋ) → ((𝑥 · 𝑤) + 𝑧) ∈ ℋ)
239, 22sylan 575 . . . . . . . 8 (((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) ∧ 𝑧 ∈ ℋ) → ((𝑥 · 𝑤) + 𝑧) ∈ ℋ)
24 cnlnadjlem.2 . . . . . . . . 9 𝑇 ∈ ContOp
251, 24, 7cnlnadjlem1 29470 . . . . . . . 8 (((𝑥 · 𝑤) + 𝑧) ∈ ℋ → (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦))
2623, 25syl 17 . . . . . . 7 (((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) ∧ 𝑧 ∈ ℋ) → (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦))
2726adantll 705 . . . . . 6 (((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) ∧ 𝑧 ∈ ℋ) → (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑇‘((𝑥 · 𝑤) + 𝑧)) ·ih 𝑦))
282ffvelrni 6607 . . . . . . . . . . 11 (𝑤 ∈ ℋ → (𝑇𝑤) ∈ ℋ)
29 ax-his3 28485 . . . . . . . . . . 11 ((𝑥 ∈ ℂ ∧ (𝑇𝑤) ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑥 · (𝑇𝑤)) ·ih 𝑦) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
3028, 29syl3an2 1207 . . . . . . . . . 10 ((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑥 · (𝑇𝑤)) ·ih 𝑦) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
31303comr 1159 . . . . . . . . 9 ((𝑦 ∈ ℋ ∧ 𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) → ((𝑥 · (𝑇𝑤)) ·ih 𝑦) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
32313expb 1153 . . . . . . . 8 ((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) → ((𝑥 · (𝑇𝑤)) ·ih 𝑦) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
331lnopmuli 29375 . . . . . . . . . 10 ((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) → (𝑇‘(𝑥 · 𝑤)) = (𝑥 · (𝑇𝑤)))
3433oveq1d 6920 . . . . . . . . 9 ((𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ) → ((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) = ((𝑥 · (𝑇𝑤)) ·ih 𝑦))
3534adantl 475 . . . . . . . 8 ((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) → ((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) = ((𝑥 · (𝑇𝑤)) ·ih 𝑦))
361, 24, 7cnlnadjlem1 29470 . . . . . . . . . 10 (𝑤 ∈ ℋ → (𝐺𝑤) = ((𝑇𝑤) ·ih 𝑦))
3736oveq2d 6921 . . . . . . . . 9 (𝑤 ∈ ℋ → (𝑥 · (𝐺𝑤)) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
3837ad2antll 720 . . . . . . . 8 ((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) → (𝑥 · (𝐺𝑤)) = (𝑥 · ((𝑇𝑤) ·ih 𝑦)))
3932, 35, 383eqtr4rd 2872 . . . . . . 7 ((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) → (𝑥 · (𝐺𝑤)) = ((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦))
401, 24, 7cnlnadjlem1 29470 . . . . . . 7 (𝑧 ∈ ℋ → (𝐺𝑧) = ((𝑇𝑧) ·ih 𝑦))
4139, 40oveqan12d 6924 . . . . . 6 (((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) ∧ 𝑧 ∈ ℋ) → ((𝑥 · (𝐺𝑤)) + (𝐺𝑧)) = (((𝑇‘(𝑥 · 𝑤)) ·ih 𝑦) + ((𝑇𝑧) ·ih 𝑦)))
4221, 27, 413eqtr4d 2871 . . . . 5 (((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) ∧ 𝑧 ∈ ℋ) → (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑥 · (𝐺𝑤)) + (𝐺𝑧)))
4342ralrimiva 3175 . . . 4 ((𝑦 ∈ ℋ ∧ (𝑥 ∈ ℂ ∧ 𝑤 ∈ ℋ)) → ∀𝑧 ∈ ℋ (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑥 · (𝐺𝑤)) + (𝐺𝑧)))
4443ralrimivva 3180 . . 3 (𝑦 ∈ ℋ → ∀𝑥 ∈ ℂ ∀𝑤 ∈ ℋ ∀𝑧 ∈ ℋ (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑥 · (𝐺𝑤)) + (𝐺𝑧)))
45 ellnfn 29286 . . 3 (𝐺 ∈ LinFn ↔ (𝐺: ℋ⟶ℂ ∧ ∀𝑥 ∈ ℂ ∀𝑤 ∈ ℋ ∀𝑧 ∈ ℋ (𝐺‘((𝑥 · 𝑤) + 𝑧)) = ((𝑥 · (𝐺𝑤)) + (𝐺𝑧))))
468, 44, 45sylanbrc 578 . 2 (𝑦 ∈ ℋ → 𝐺 ∈ LinFn)
471, 24nmcopexi 29430 . . . . 5 (normop𝑇) ∈ ℝ
48 normcl 28526 . . . . 5 (𝑦 ∈ ℋ → (norm𝑦) ∈ ℝ)
49 remulcl 10337 . . . . 5 (((normop𝑇) ∈ ℝ ∧ (norm𝑦) ∈ ℝ) → ((normop𝑇) · (norm𝑦)) ∈ ℝ)
5047, 48, 49sylancr 581 . . . 4 (𝑦 ∈ ℋ → ((normop𝑇) · (norm𝑦)) ∈ ℝ)
5140adantr 474 . . . . . . . . . 10 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (𝐺𝑧) = ((𝑇𝑧) ·ih 𝑦))
52 hicl 28481 . . . . . . . . . . 11 (((𝑇𝑧) ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇𝑧) ·ih 𝑦) ∈ ℂ)
5314, 52sylan 575 . . . . . . . . . 10 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((𝑇𝑧) ·ih 𝑦) ∈ ℂ)
5451, 53eqeltrd 2906 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (𝐺𝑧) ∈ ℂ)
5554abscld 14552 . . . . . . . 8 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘(𝐺𝑧)) ∈ ℝ)
56 normcl 28526 . . . . . . . . . 10 ((𝑇𝑧) ∈ ℋ → (norm‘(𝑇𝑧)) ∈ ℝ)
5714, 56syl 17 . . . . . . . . 9 (𝑧 ∈ ℋ → (norm‘(𝑇𝑧)) ∈ ℝ)
58 remulcl 10337 . . . . . . . . 9 (((norm‘(𝑇𝑧)) ∈ ℝ ∧ (norm𝑦) ∈ ℝ) → ((norm‘(𝑇𝑧)) · (norm𝑦)) ∈ ℝ)
5957, 48, 58syl2an 589 . . . . . . . 8 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((norm‘(𝑇𝑧)) · (norm𝑦)) ∈ ℝ)
60 normcl 28526 . . . . . . . . . 10 (𝑧 ∈ ℋ → (norm𝑧) ∈ ℝ)
61 remulcl 10337 . . . . . . . . . 10 (((normop𝑇) ∈ ℝ ∧ (norm𝑧) ∈ ℝ) → ((normop𝑇) · (norm𝑧)) ∈ ℝ)
6247, 60, 61sylancr 581 . . . . . . . . 9 (𝑧 ∈ ℋ → ((normop𝑇) · (norm𝑧)) ∈ ℝ)
63 remulcl 10337 . . . . . . . . 9 ((((normop𝑇) · (norm𝑧)) ∈ ℝ ∧ (norm𝑦) ∈ ℝ) → (((normop𝑇) · (norm𝑧)) · (norm𝑦)) ∈ ℝ)
6462, 48, 63syl2an 589 . . . . . . . 8 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (((normop𝑇) · (norm𝑧)) · (norm𝑦)) ∈ ℝ)
6551fveq2d 6437 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘(𝐺𝑧)) = (abs‘((𝑇𝑧) ·ih 𝑦)))
66 bcs 28582 . . . . . . . . . 10 (((𝑇𝑧) ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘((𝑇𝑧) ·ih 𝑦)) ≤ ((norm‘(𝑇𝑧)) · (norm𝑦)))
6714, 66sylan 575 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘((𝑇𝑧) ·ih 𝑦)) ≤ ((norm‘(𝑇𝑧)) · (norm𝑦)))
6865, 67eqbrtrd 4895 . . . . . . . 8 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘(𝐺𝑧)) ≤ ((norm‘(𝑇𝑧)) · (norm𝑦)))
6957adantr 474 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (norm‘(𝑇𝑧)) ∈ ℝ)
7062adantr 474 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((normop𝑇) · (norm𝑧)) ∈ ℝ)
71 normge0 28527 . . . . . . . . . . 11 (𝑦 ∈ ℋ → 0 ≤ (norm𝑦))
7248, 71jca 507 . . . . . . . . . 10 (𝑦 ∈ ℋ → ((norm𝑦) ∈ ℝ ∧ 0 ≤ (norm𝑦)))
7372adantl 475 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((norm𝑦) ∈ ℝ ∧ 0 ≤ (norm𝑦)))
741, 24nmcoplbi 29431 . . . . . . . . . 10 (𝑧 ∈ ℋ → (norm‘(𝑇𝑧)) ≤ ((normop𝑇) · (norm𝑧)))
7574adantr 474 . . . . . . . . 9 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (norm‘(𝑇𝑧)) ≤ ((normop𝑇) · (norm𝑧)))
76 lemul1a 11207 . . . . . . . . 9 ((((norm‘(𝑇𝑧)) ∈ ℝ ∧ ((normop𝑇) · (norm𝑧)) ∈ ℝ ∧ ((norm𝑦) ∈ ℝ ∧ 0 ≤ (norm𝑦))) ∧ (norm‘(𝑇𝑧)) ≤ ((normop𝑇) · (norm𝑧))) → ((norm‘(𝑇𝑧)) · (norm𝑦)) ≤ (((normop𝑇) · (norm𝑧)) · (norm𝑦)))
7769, 70, 73, 75, 76syl31anc 1496 . . . . . . . 8 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → ((norm‘(𝑇𝑧)) · (norm𝑦)) ≤ (((normop𝑇) · (norm𝑧)) · (norm𝑦)))
7855, 59, 64, 68, 77letrd 10513 . . . . . . 7 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑧)) · (norm𝑦)))
7960recnd 10385 . . . . . . . 8 (𝑧 ∈ ℋ → (norm𝑧) ∈ ℂ)
8048recnd 10385 . . . . . . . 8 (𝑦 ∈ ℋ → (norm𝑦) ∈ ℂ)
8147recni 10371 . . . . . . . . 9 (normop𝑇) ∈ ℂ
82 mul32 10522 . . . . . . . . 9 (((normop𝑇) ∈ ℂ ∧ (norm𝑧) ∈ ℂ ∧ (norm𝑦) ∈ ℂ) → (((normop𝑇) · (norm𝑧)) · (norm𝑦)) = (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8381, 82mp3an1 1576 . . . . . . . 8 (((norm𝑧) ∈ ℂ ∧ (norm𝑦) ∈ ℂ) → (((normop𝑇) · (norm𝑧)) · (norm𝑦)) = (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8479, 80, 83syl2an 589 . . . . . . 7 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (((normop𝑇) · (norm𝑧)) · (norm𝑦)) = (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8578, 84breqtrd 4899 . . . . . 6 ((𝑧 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8685ancoms 452 . . . . 5 ((𝑦 ∈ ℋ ∧ 𝑧 ∈ ℋ) → (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8786ralrimiva 3175 . . . 4 (𝑦 ∈ ℋ → ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
88 oveq1 6912 . . . . . . 7 (𝑥 = ((normop𝑇) · (norm𝑦)) → (𝑥 · (norm𝑧)) = (((normop𝑇) · (norm𝑦)) · (norm𝑧)))
8988breq2d 4885 . . . . . 6 (𝑥 = ((normop𝑇) · (norm𝑦)) → ((abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧)) ↔ (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧))))
9089ralbidv 3195 . . . . 5 (𝑥 = ((normop𝑇) · (norm𝑦)) → (∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧)) ↔ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧))))
9190rspcev 3526 . . . 4 ((((normop𝑇) · (norm𝑦)) ∈ ℝ ∧ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (((normop𝑇) · (norm𝑦)) · (norm𝑧))) → ∃𝑥 ∈ ℝ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧)))
9250, 87, 91syl2anc 579 . . 3 (𝑦 ∈ ℋ → ∃𝑥 ∈ ℝ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧)))
93 lnfncon 29459 . . . 4 (𝐺 ∈ LinFn → (𝐺 ∈ ContFn ↔ ∃𝑥 ∈ ℝ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧))))
9446, 93syl 17 . . 3 (𝑦 ∈ ℋ → (𝐺 ∈ ContFn ↔ ∃𝑥 ∈ ℝ ∀𝑧 ∈ ℋ (abs‘(𝐺𝑧)) ≤ (𝑥 · (norm𝑧))))
9592, 94mpbird 249 . 2 (𝑦 ∈ ℋ → 𝐺 ∈ ContFn)
9646, 95jca 507 1 (𝑦 ∈ ℋ → (𝐺 ∈ LinFn ∧ 𝐺 ∈ ContFn))