Step | Hyp | Ref
| Expression |
1 | | shsel 29655 |
. 2
⊢ ((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
→ (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ ∃𝑥 ∈ 𝐴 ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧))) |
2 | | id 22 |
. . . . . . 7
⊢ (𝐶 = (𝑥 +ℎ 𝑧) → 𝐶 = (𝑥 +ℎ 𝑧)) |
3 | | shel 29552 |
. . . . . . . . . 10
⊢ ((𝐴 ∈
Sℋ ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ ℋ) |
4 | | shel 29552 |
. . . . . . . . . 10
⊢ ((𝐵 ∈
Sℋ ∧ 𝑧 ∈ 𝐵) → 𝑧 ∈ ℋ) |
5 | | hvaddsubval 29374 |
. . . . . . . . . 10
⊢ ((𝑥 ∈ ℋ ∧ 𝑧 ∈ ℋ) → (𝑥 +ℎ 𝑧) = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
6 | 3, 4, 5 | syl2an 595 |
. . . . . . . . 9
⊢ (((𝐴 ∈
Sℋ ∧ 𝑥 ∈ 𝐴) ∧ (𝐵 ∈ Sℋ
∧ 𝑧 ∈ 𝐵)) → (𝑥 +ℎ 𝑧) = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
7 | 6 | an4s 656 |
. . . . . . . 8
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ (𝑥 ∈ 𝐴 ∧ 𝑧 ∈ 𝐵)) → (𝑥 +ℎ 𝑧) = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
8 | 7 | anassrs 467 |
. . . . . . 7
⊢ ((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑧 ∈ 𝐵) → (𝑥 +ℎ 𝑧) = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
9 | 2, 8 | sylan9eqr 2801 |
. . . . . 6
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑧 ∈ 𝐵) ∧ 𝐶 = (𝑥 +ℎ 𝑧)) → 𝐶 = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
10 | | neg1cn 12070 |
. . . . . . . . . 10
⊢ -1 ∈
ℂ |
11 | | shmulcl 29559 |
. . . . . . . . . 10
⊢ ((𝐵 ∈
Sℋ ∧ -1 ∈ ℂ ∧ 𝑧 ∈ 𝐵) → (-1
·ℎ 𝑧) ∈ 𝐵) |
12 | 10, 11 | mp3an2 1447 |
. . . . . . . . 9
⊢ ((𝐵 ∈
Sℋ ∧ 𝑧 ∈ 𝐵) → (-1
·ℎ 𝑧) ∈ 𝐵) |
13 | 12 | adantll 710 |
. . . . . . . 8
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑧 ∈ 𝐵) → (-1
·ℎ 𝑧) ∈ 𝐵) |
14 | 13 | adantlr 711 |
. . . . . . 7
⊢ ((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑧 ∈ 𝐵) → (-1
·ℎ 𝑧) ∈ 𝐵) |
15 | | oveq2 7276 |
. . . . . . . 8
⊢ (𝑦 = (-1
·ℎ 𝑧) → (𝑥 −ℎ 𝑦) = (𝑥 −ℎ (-1
·ℎ 𝑧))) |
16 | 15 | rspceeqv 3575 |
. . . . . . 7
⊢ (((-1
·ℎ 𝑧) ∈ 𝐵 ∧ 𝐶 = (𝑥 −ℎ (-1
·ℎ 𝑧))) → ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦)) |
17 | 14, 16 | sylan 579 |
. . . . . 6
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑧 ∈ 𝐵) ∧ 𝐶 = (𝑥 −ℎ (-1
·ℎ 𝑧))) → ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦)) |
18 | 9, 17 | syldan 590 |
. . . . 5
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑧 ∈ 𝐵) ∧ 𝐶 = (𝑥 +ℎ 𝑧)) → ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦)) |
19 | 18 | rexlimdva2 3217 |
. . . 4
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) → (∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧) → ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦))) |
20 | | id 22 |
. . . . . . 7
⊢ (𝐶 = (𝑥 −ℎ 𝑦) → 𝐶 = (𝑥 −ℎ 𝑦)) |
21 | | shel 29552 |
. . . . . . . . . 10
⊢ ((𝐵 ∈
Sℋ ∧ 𝑦 ∈ 𝐵) → 𝑦 ∈ ℋ) |
22 | | hvsubval 29357 |
. . . . . . . . . 10
⊢ ((𝑥 ∈ ℋ ∧ 𝑦 ∈ ℋ) → (𝑥 −ℎ
𝑦) = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
23 | 3, 21, 22 | syl2an 595 |
. . . . . . . . 9
⊢ (((𝐴 ∈
Sℋ ∧ 𝑥 ∈ 𝐴) ∧ (𝐵 ∈ Sℋ
∧ 𝑦 ∈ 𝐵)) → (𝑥 −ℎ 𝑦) = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
24 | 23 | an4s 656 |
. . . . . . . 8
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)) → (𝑥 −ℎ 𝑦) = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
25 | 24 | anassrs 467 |
. . . . . . 7
⊢ ((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) → (𝑥 −ℎ 𝑦) = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
26 | 20, 25 | sylan9eqr 2801 |
. . . . . 6
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) ∧ 𝐶 = (𝑥 −ℎ 𝑦)) → 𝐶 = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
27 | | shmulcl 29559 |
. . . . . . . . . 10
⊢ ((𝐵 ∈
Sℋ ∧ -1 ∈ ℂ ∧ 𝑦 ∈ 𝐵) → (-1
·ℎ 𝑦) ∈ 𝐵) |
28 | 10, 27 | mp3an2 1447 |
. . . . . . . . 9
⊢ ((𝐵 ∈
Sℋ ∧ 𝑦 ∈ 𝐵) → (-1
·ℎ 𝑦) ∈ 𝐵) |
29 | 28 | adantll 710 |
. . . . . . . 8
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑦 ∈ 𝐵) → (-1
·ℎ 𝑦) ∈ 𝐵) |
30 | 29 | adantlr 711 |
. . . . . . 7
⊢ ((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) → (-1
·ℎ 𝑦) ∈ 𝐵) |
31 | | oveq2 7276 |
. . . . . . . 8
⊢ (𝑧 = (-1
·ℎ 𝑦) → (𝑥 +ℎ 𝑧) = (𝑥 +ℎ (-1
·ℎ 𝑦))) |
32 | 31 | rspceeqv 3575 |
. . . . . . 7
⊢ (((-1
·ℎ 𝑦) ∈ 𝐵 ∧ 𝐶 = (𝑥 +ℎ (-1
·ℎ 𝑦))) → ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧)) |
33 | 30, 32 | sylan 579 |
. . . . . 6
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) ∧ 𝐶 = (𝑥 +ℎ (-1
·ℎ 𝑦))) → ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧)) |
34 | 26, 33 | syldan 590 |
. . . . 5
⊢
(((((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) ∧ 𝐶 = (𝑥 −ℎ 𝑦)) → ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧)) |
35 | 34 | rexlimdva2 3217 |
. . . 4
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) → (∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦) → ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧))) |
36 | 19, 35 | impbid 211 |
. . 3
⊢ (((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
∧ 𝑥 ∈ 𝐴) → (∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧) ↔ ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦))) |
37 | 36 | rexbidva 3226 |
. 2
⊢ ((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
→ (∃𝑥 ∈
𝐴 ∃𝑧 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑧) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦))) |
38 | 1, 37 | bitrd 278 |
1
⊢ ((𝐴 ∈
Sℋ ∧ 𝐵 ∈ Sℋ )
→ (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 −ℎ 𝑦))) |