Proof of Theorem h1de2ctlem
| Step | Hyp | Ref
| Expression |
| 1 | | sneq 1816 |
. . . . . . . 8
⊢ (B =
0v → {B} =
{0v}) |
| 2 | 1 | fveq2d 2836 |
. . . . . . 7
⊢ (B =
0v → (⊥ ‘{B}) = (⊥
‘{0v})) |
| 3 | 2 | fveq2d 2836 |
. . . . . 6
⊢ (B =
0v → (⊥ ‘(⊥ ‘{B})) = (⊥ ‘(⊥
‘{0v}))) |
| 4 | 3 | eleq2d 1156 |
. . . . 5
⊢ (B =
0v → (A ∈
(⊥ ‘(⊥ ‘{B}))
↔ A ∈ (⊥ ‘(⊥
‘{0v})))) |
| 5 | | h1de2.1 |
. . . . . . . 8
⊢ A
∈ ℋ |
| 6 | 5 | elisseti 1355 |
. . . . . . 7
⊢ A
∈ V |
| 7 | 6 | elsnc 1826 |
. . . . . 6
⊢ (A
∈ {0v} ↔ A =
0v) |
| 8 | | hsn0elch 5155 |
. . . . . . . 8
⊢ {0v} ∈
Cℋ |
| 9 | 8 | ococ 5252 |
. . . . . . 7
⊢ (⊥ ‘(⊥
‘{0v})) = {0v} |
| 10 | 9 | eleq2i 1153 |
. . . . . 6
⊢ (A
∈ (⊥ ‘(⊥ ‘{0v})) ↔ A ∈ {0v}) |
| 11 | | h1de2.2 |
. . . . . . . 8
⊢ B
∈ ℋ |
| 12 | | ax-hvmulzer 4995 |
. . . . . . . 8
⊢ (B
∈ ℋ → (0 ·s B) = 0v) |
| 13 | 11, 12 | ax-mp 6 |
. . . . . . 7
⊢ (0 ·s
B) = 0v |
| 14 | 13 | cleq2i 1111 |
. . . . . 6
⊢ (A =
(0 ·s B)
↔ A = 0v) |
| 15 | 7, 10, 14 | 3bitr4r 159 |
. . . . 5
⊢ (A =
(0 ·s B)
↔ A ∈ (⊥ ‘(⊥
‘{0v}))) |
| 16 | 4, 15 | syl6rbbr 417 |
. . . 4
⊢ (B =
0v → (A = (0
·s B)
↔ A ∈ (⊥ ‘(⊥
‘{B})))) |
| 17 | | 0cn 4100 |
. . . . 5
⊢ 0 ∈ ℂ |
| 18 | | opreq1 3006 |
. . . . . . 7
⊢ (x = 0
→ (x
·s B) = (0
·s B)) |
| 19 | 18 | cleq2d 1112 |
. . . . . 6
⊢ (x = 0
→ (A = (x ·s B) ↔ A = (0
·s B))) |
| 20 | 19 | rcla4ev 1403 |
. . . . 5
⊢ ((0 ∈ ℂ ∧ A = (0 ·s B)) → ∃x ∈ ℂ A = (x
·s B)) |
| 21 | 17, 20 | mpan 518 |
. . . 4
⊢ (A =
(0 ·s B)
→ ∃x ∈ ℂ A = (x
·s B)) |
| 22 | 16, 21 | syl6bir 188 |
. . 3
⊢ (B =
0v → (A ∈
(⊥ ‘(⊥ ‘{B}))
→ ∃x ∈ ℂ A = (x
·s B))) |
| 23 | 5, 11 | h1de2b 5459 |
. . . 4
⊢ (¬ B = 0v → (A ∈ (⊥ ‘(⊥ ‘{B})) ↔ A =
(((A ·i
B) / (B
·i B))
·s B))) |
| 24 | | opreq1 3006 |
. . . . . . . 8
⊢ (x =
((A ·i
B) / (B
·i B))
→ (x
·s B) =
(((A ·i
B) / (B
·i B))
·s B)) |
| 25 | 24 | cleq2d 1112 |
. . . . . . 7
⊢ (x =
((A ·i
B) / (B
·i B))
→ (A = (x ·s B) ↔ A =
(((A ·i
B) / (B
·i B))
·s B))) |
| 26 | 25 | rcla4ev 1403 |
. . . . . 6
⊢ ((((A
·i B) /
(B ·i
B)) ∈ ℂ ∧ A = (((A
·i B) /
(B ·i
B)) ·s
B)) → ∃x ∈ ℂ A = (x
·s B)) |
| 27 | | df-ne 1192 |
. . . . . . . 8
⊢ ((B
·i B) ≠
0 ↔ ¬ (B
·i B) =
0) |
| 28 | | his6 5057 |
. . . . . . . . . 10
⊢ (B
∈ ℋ → ((B
·i B) = 0
↔ B = 0v)) |
| 29 | 11, 28 | ax-mp 6 |
. . . . . . . . 9
⊢ ((B
·i B) = 0
↔ B = 0v) |
| 30 | 29 | negbii 162 |
. . . . . . . 8
⊢ (¬ (B ·i B) = 0 ↔ ¬ B = 0v) |
| 31 | 27, 30 | bitr 151 |
. . . . . . 7
⊢ ((B
·i B) ≠
0 ↔ ¬ B =
0v) |
| 32 | 5, 11 | hicl 5044 |
. . . . . . . 8
⊢ (A
·i B)
∈ ℂ |
| 33 | 11, 11 | hicl 5044 |
. . . . . . . 8
⊢ (B
·i B)
∈ ℂ |
| 34 | 32, 33 | divclz 4222 |
. . . . . . 7
⊢ ((B
·i B) ≠
0 → ((A
·i B) /
(B ·i
B)) ∈ ℂ) |
| 35 | 31, 34 | sylbir 176 |
. . . . . 6
⊢ (¬ B = 0v → ((A ·i B) / (B
·i B))
∈ ℂ) |
| 36 | 26, 35 | sylan 343 |
. . . . 5
⊢ ((¬ B = 0v ∧ A = (((A
·i B) /
(B ·i
B)) ·s
B)) → ∃x ∈ ℂ A = (x
·s B)) |
| 37 | 36 | exp 291 |
. . . 4
⊢ (¬ B = 0v → (A = (((A
·i B) /
(B ·i
B)) ·s
B) → ∃x ∈ ℂ A = (x
·s B))) |
| 38 | 23, 37 | sylbid 178 |
. . 3
⊢ (¬ B = 0v → (A ∈ (⊥ ‘(⊥ ‘{B})) → ∃x ∈ ℂ A = (x
·s B))) |
| 39 | 22, 38 | pm2.61i 110 |
. 2
⊢ (A
∈ (⊥ ‘(⊥ ‘{B})) → ∃x ∈ ℂ A = (x
·s B)) |
| 40 | | eleq1 1149 |
. . . . 5
⊢ (A =
(x ·s
B) → (A ∈ (⊥ ‘(⊥ ‘{B})) ↔ (x
·s B)
∈ (⊥ ‘(⊥ ‘{B})))) |
| 41 | | h1did 5456 |
. . . . . . 7
⊢ (B
∈ ℋ → B ∈ (⊥
‘(⊥ ‘{B}))) |
| 42 | 11, 41 | ax-mp 6 |
. . . . . 6
⊢ B
∈ (⊥ ‘(⊥ ‘{B})) |
| 43 | | snssi 1851 |
. . . . . . . . . . 11
⊢ (B
∈ ℋ → {B} ⊆ ℋ
) |
| 44 | 11, 43 | ax-mp 6 |
. . . . . . . . . 10
⊢ {B}
⊆ ℋ |
| 45 | 44 | occl 5188 |
. . . . . . . . 9
⊢ (⊥ ‘{B}) ∈ Cℋ |
| 46 | 45 | chocl 5192 |
. . . . . . . 8
⊢ (⊥ ‘(⊥ ‘{B})) ∈ Cℋ |
| 47 | 46 | chshi 5132 |
. . . . . . 7
⊢ (⊥ ‘(⊥ ‘{B})) ∈ Sℋ |
| 48 | | shmulclt 5124 |
. . . . . . 7
⊢ ((⊥ ‘(⊥ ‘{B})) ∈ Sℋ →
((x ∈ ℂ ∧ B ∈ (⊥ ‘(⊥ ‘{B}))) → (x
·s B)
∈ (⊥ ‘(⊥ ‘{B})))) |
| 49 | 47, 48 | ax-mp 6 |
. . . . . 6
⊢ ((x
∈ ℂ ∧ B ∈ (⊥
‘(⊥ ‘{B}))) →
(x ·s
B) ∈ (⊥ ‘(⊥
‘{B}))) |
| 50 | 42, 49 | mpan2 519 |
. . . . 5
⊢ (x
∈ ℂ → (x
·s B)
∈ (⊥ ‘(⊥ ‘{B}))) |
| 51 | 40, 50 | syl5bir 184 |
. . . 4
⊢ (A =
(x ·s
B) → (x ∈ ℂ → A ∈ (⊥ ‘(⊥ ‘{B})))) |
| 52 | 51 | com12 13 |
. . 3
⊢ (x
∈ ℂ → (A = (x ·s B) → A
∈ (⊥ ‘(⊥ ‘{B})))) |
| 53 | 52 | r19.23aiv 1284 |
. 2
⊢ (∃x ∈ ℂ A = (x
·s B)
→ A ∈ (⊥ ‘(⊥
‘{B}))) |
| 54 | 39, 53 | impbi 139 |
1
⊢ (A
∈ (⊥ ‘(⊥ ‘{B})) ↔ ∃x ∈ ℂ A = (x
·s B)) |