Proof of Theorem occl
| Step | Hyp | Ref
| Expression |
| 1 | | occl.1 |
. . . 4
⊢ A
⊆ ℋ |
| 2 | | ocsh 5164 |
. . . 4
⊢ (A
⊆ ℋ → (⊥ ‘A)
∈ Sℋ ) |
| 3 | 1, 2 | ax-mp 6 |
. . 3
⊢ (⊥ ‘A) ∈ Sℋ |
| 4 | | visset 1350 |
. . . . . . . 8
⊢ f
∈ V |
| 5 | | visset 1350 |
. . . . . . . 8
⊢ x
∈ V |
| 6 | 4, 5 | hlimvec 5110 |
. . . . . . 7
⊢ (f
⇝v x →
x ∈ ℋ ) |
| 7 | 6 | adantl 305 |
. . . . . 6
⊢ ((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
x ∈ ℋ ) |
| 8 | 4 | occllem8 5187 |
. . . . . . . . . . . . . . 15
⊢ ((x
∈ ℋ ∧ y ∈ ℋ )
→ ((f ⇝v
x ∧ ∀z ∈ ℕ ((f ‘z)
·i y) = 0)
→ (x
·i y) =
0)) |
| 9 | 8 | exp4b 296 |
. . . . . . . . . . . . . 14
⊢ (x
∈ ℋ → (y ∈ ℋ
→ (f ⇝v
x → (∀z ∈ ℕ ((f ‘z)
·i y) = 0
→ (x
·i y) =
0)))) |
| 10 | 1 | sseli 1504 |
. . . . . . . . . . . . . 14
⊢ (y
∈ A → y ∈ ℋ ) |
| 11 | 9, 10 | syl5 22 |
. . . . . . . . . . . . 13
⊢ (x
∈ ℋ → (y ∈ A → (f
⇝v x →
(∀z ∈ ℕ ((f ‘z)
·i y) = 0
→ (x
·i y) =
0)))) |
| 12 | 11 | com23 32 |
. . . . . . . . . . . 12
⊢ (x
∈ ℋ → (f
⇝v x →
(y ∈ A → (∀z ∈ ℕ ((f ‘z)
·i y) = 0
→ (x
·i y) =
0)))) |
| 13 | 6, 12 | mpcom 49 |
. . . . . . . . . . 11
⊢ (f
⇝v x →
(y ∈ A → (∀z ∈ ℕ ((f ‘z)
·i y) = 0
→ (x
·i y) =
0))) |
| 14 | 13 | imp 277 |
. . . . . . . . . 10
⊢ ((f
⇝v x ∧ y ∈ A)
→ (∀z ∈ ℕ ((f ‘z)
·i y) = 0
→ (x
·i y) =
0)) |
| 15 | 14 | r19.20dva 1256 |
. . . . . . . . 9
⊢ (f
⇝v x →
(∀y ∈ A ∀z
∈ ℕ ((f ‘z) ·i y) = 0 → ∀y ∈ A
(x ·i
y) = 0)) |
| 16 | | ffvrn 2890 |
. . . . . . . . . . . . 13
⊢ ((f:ℕ–→(⊥ ‘A) ∧ z
∈ ℕ) → (f ‘z) ∈ (⊥ ‘A)) |
| 17 | | ocelt 5162 |
. . . . . . . . . . . . . . 15
⊢ (A
⊆ ℋ → ((f ‘z) ∈ (⊥ ‘A) ↔ ((f
‘z) ∈ ℋ ∧
∀y ∈ A ((f
‘z)
·i y) =
0))) |
| 18 | 1, 17 | ax-mp 6 |
. . . . . . . . . . . . . 14
⊢ ((f
‘z) ∈ (⊥ ‘A) ↔ ((f
‘z) ∈ ℋ ∧
∀y ∈ A ((f
‘z)
·i y) =
0)) |
| 19 | 18 | pm3.27bd 263 |
. . . . . . . . . . . . 13
⊢ ((f
‘z) ∈ (⊥ ‘A) → ∀y ∈ A
((f ‘z) ·i y) = 0) |
| 20 | 16, 19 | syl 12 |
. . . . . . . . . . . 12
⊢ ((f:ℕ–→(⊥ ‘A) ∧ z
∈ ℕ) → ∀y ∈
A ((f
‘z)
·i y) =
0) |
| 21 | 20 | exp 291 |
. . . . . . . . . . 11
⊢ (f:ℕ–→(⊥ ‘A) → (z
∈ ℕ → ∀y ∈
A ((f
‘z)
·i y) =
0)) |
| 22 | 21 | r19.21aiv 1259 |
. . . . . . . . . 10
⊢ (f:ℕ–→(⊥ ‘A) → ∀z ∈ ℕ ∀y ∈ A
((f ‘z) ·i y) = 0) |
| 23 | | ralcom 1312 |
. . . . . . . . . 10
⊢ (∀y ∈ A
∀z ∈ ℕ ((f ‘z)
·i y) = 0
↔ ∀z ∈ ℕ
∀y ∈ A ((f
‘z)
·i y) =
0) |
| 24 | 22, 23 | sylibr 175 |
. . . . . . . . 9
⊢ (f:ℕ–→(⊥ ‘A) → ∀y ∈ A
∀z ∈ ℕ ((f ‘z)
·i y) =
0) |
| 25 | 15, 24 | syl5 22 |
. . . . . . . 8
⊢ (f
⇝v x →
(f:ℕ–→(⊥
‘A) → ∀y ∈ A
(x ·i
y) = 0)) |
| 26 | 25 | imp 277 |
. . . . . . 7
⊢ ((f
⇝v x ∧ f:ℕ–→(⊥ ‘A)) → ∀y ∈ A
(x ·i
y) = 0) |
| 27 | 26 | ancoms 334 |
. . . . . 6
⊢ ((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
∀y ∈ A (x
·i y) =
0) |
| 28 | 7, 27 | jca 236 |
. . . . 5
⊢ ((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
(x ∈ ℋ ∧ ∀y ∈ A
(x ·i
y) = 0)) |
| 29 | | ocelt 5162 |
. . . . . 6
⊢ (A
⊆ ℋ → (x ∈ (⊥
‘A) ↔ (x ∈ ℋ ∧ ∀y ∈ A
(x ·i
y) = 0))) |
| 30 | 1, 29 | ax-mp 6 |
. . . . 5
⊢ (x
∈ (⊥ ‘A) ↔ (x ∈ ℋ ∧ ∀y ∈ A
(x ·i
y) = 0)) |
| 31 | 28, 30 | sylibr 175 |
. . . 4
⊢ ((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
x ∈ (⊥ ‘A)) |
| 32 | 31 | gen2 681 |
. . 3
⊢ ∀f∀x((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
x ∈ (⊥ ‘A)) |
| 33 | 3, 32 | pm3.2i 234 |
. 2
⊢ ((⊥ ‘A) ∈ Sℋ ∧
∀f∀x((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
x ∈ (⊥ ‘A))) |
| 34 | | closedsub 5128 |
. 2
⊢ ((⊥ ‘A) ∈ Cℋ ↔
((⊥ ‘A) ∈
Sℋ ∧ ∀f∀x((f:ℕ–→(⊥ ‘A) ∧ f
⇝v x) →
x ∈ (⊥ ‘A)))) |
| 35 | 33, 34 | mpbir 165 |
1
⊢ (⊥ ‘A) ∈ Cℋ |