Proof of Theorem mdsymlem6
| Step | Hyp | Ref
| Expression |
| 1 | | mdsymlem1.1 |
. . . . . . . . . . . . . . . 16
⊢ A
∈ Cℋ |
| 2 | | mdsymlem1.2 |
. . . . . . . . . . . . . . . 16
⊢ B
∈ Cℋ |
| 3 | | mdsymlem1.3 |
. . . . . . . . . . . . . . . 16
⊢ C =
(A ∨ℋ p) |
| 4 | 1, 2, 3 | mdsymlem5 5780 |
. . . . . . . . . . . . . . 15
⊢ ((q
∈ Atoms ∧ r ∈ Atoms) →
(¬ q = p → ((p
⊆ (q ∨ℋ r) ∧ (q
⊆ A ∧ r ⊆ B))
→ (((c ∈
Cℋ ∧ A ⊆
c) ∧ p ∈ Atoms) → (p ⊆ c
→ p ⊆ ((c ∩ B)
∨ℋ A)))))) |
| 5 | | sseq1 1521 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (q =
p → (q ⊆ A
↔ p ⊆ A)) |
| 6 | | sstr2 1510 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ (p
⊆ A → (A ⊆ ((c
∩ B) ∨ℋ A) → p
⊆ ((c ∩ B) ∨ℋ A))) |
| 7 | | chinclt 5416 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ ((c
∈ Cℋ ∧ B
∈ Cℋ ) → (c ∩ B)
∈ Cℋ ) |
| 8 | 2, 7 | mpan2 519 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ (c
∈ Cℋ → (c
∩ B) ∈ Cℋ
) |
| 9 | | chub2t 5425 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ ((A
∈ Cℋ ∧ (c
∩ B) ∈ Cℋ
) → A ⊆ ((c ∩ B)
∨ℋ A)) |
| 10 | 1, 9 | mpan 518 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ ((c
∩ B) ∈ Cℋ
→ A ⊆ ((c ∩ B)
∨ℋ A)) |
| 11 | 8, 10 | syl 12 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ (c
∈ Cℋ → A
⊆ ((c ∩ B) ∨ℋ A)) |
| 12 | 6, 11 | syl5 22 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (p
⊆ A → (c ∈ Cℋ → p ⊆ ((c
∩ B) ∨ℋ A))) |
| 13 | 5, 12 | syl6bi 187 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (q =
p → (q ⊆ A
→ (c ∈ Cℋ
→ p ⊆ ((c ∩ B)
∨ℋ A)))) |
| 14 | 13 | imp3a 279 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢ (q =
p → ((q ⊆ A
∧ c ∈ Cℋ )
→ p ⊆ ((c ∩ B)
∨ℋ A))) |
| 15 | 14 | a1i 7 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ (p
⊆ c → (q = p →
((q ⊆ A ∧ c ∈
Cℋ ) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 16 | 15 | com13 33 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ ((q
⊆ A ∧ c ∈ Cℋ ) →
(q = p
→ (p ⊆ c → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 17 | 16 | adantrr 312 |
. . . . . . . . . . . . . . . . . . . 20
⊢ ((q
⊆ A ∧ (c ∈ Cℋ ∧ A ⊆ c))
→ (q = p → (p
⊆ c → p ⊆ ((c
∩ B) ∨ℋ A)))) |
| 18 | 17 | adantrr 312 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((q
⊆ A ∧ ((c ∈ Cℋ ∧ A ⊆ c)
∧ p ∈ Atoms)) → (q = p →
(p ⊆ c → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 19 | 18 | adantlr 310 |
. . . . . . . . . . . . . . . . . 18
⊢ (((q
⊆ A ∧ r ⊆ B)
∧ ((c ∈ Cℋ
∧ A ⊆ c) ∧ p
∈ Atoms)) → (q = p → (p
⊆ c → p ⊆ ((c
∩ B) ∨ℋ A)))) |
| 20 | 19 | adantll 309 |
. . . . . . . . . . . . . . . . 17
⊢ (((p
⊆ (q ∨ℋ r) ∧ (q
⊆ A ∧ r ⊆ B))
∧ ((c ∈ Cℋ
∧ A ⊆ c) ∧ p
∈ Atoms)) → (q = p → (p
⊆ c → p ⊆ ((c
∩ B) ∨ℋ A)))) |
| 21 | 20 | com12 13 |
. . . . . . . . . . . . . . . 16
⊢ (q =
p → (((p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)) ∧ ((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms)) → (p ⊆ c
→ p ⊆ ((c ∩ B)
∨ℋ A)))) |
| 22 | 21 | exp3a 292 |
. . . . . . . . . . . . . . 15
⊢ (q =
p → ((p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)) → (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → (p ⊆ c
→ p ⊆ ((c ∩ B)
∨ℋ A))))) |
| 23 | 4, 22 | pm2.61d2 111 |
. . . . . . . . . . . . . 14
⊢ ((q
∈ Atoms ∧ r ∈ Atoms) →
((p ⊆ (q ∨ℋ r) ∧ (q
⊆ A ∧ r ⊆ B))
→ (((c ∈
Cℋ ∧ A ⊆
c) ∧ p ∈ Atoms) → (p ⊆ c
→ p ⊆ ((c ∩ B)
∨ℋ A))))) |
| 24 | 23 | r19.23aivv 1287 |
. . . . . . . . . . . . 13
⊢ (∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)) → (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → (p ⊆ c
→ p ⊆ ((c ∩ B)
∨ℋ A)))) |
| 25 | 24 | com12 13 |
. . . . . . . . . . . 12
⊢ (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → (∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)) → (p
⊆ c → p ⊆ ((c
∩ B) ∨ℋ A)))) |
| 26 | 25 | syl3d 26 |
. . . . . . . . . . 11
⊢ (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → ((p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (p
⊆ (A ∨ℋ B) → (p
⊆ c → p ⊆ ((c
∩ B) ∨ℋ A))))) |
| 27 | 26 | com34 36 |
. . . . . . . . . 10
⊢ (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → ((p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (p
⊆ c → (p ⊆ (A
∨ℋ B) → p ⊆ ((c
∩ B) ∨ℋ A))))) |
| 28 | 27 | imp4b 283 |
. . . . . . . . 9
⊢ ((((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) ∧ (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)))) → ((p
⊆ c ∧ p ⊆ (A
∨ℋ B)) → p ⊆ ((c
∩ B) ∨ℋ A))) |
| 29 | 1, 2 | chjcom 5389 |
. . . . . . . . . . . 12
⊢ (A
∨ℋ B) = (B ∨ℋ A) |
| 30 | 29 | sseq2i 1525 |
. . . . . . . . . . 11
⊢ (p
⊆ (A ∨ℋ B) ↔ p
⊆ (B ∨ℋ A)) |
| 31 | 30 | anbi2i 367 |
. . . . . . . . . 10
⊢ ((p
⊆ c ∧ p ⊆ (A
∨ℋ B)) ↔ (p ⊆ c
∧ p ⊆ (B ∨ℋ A))) |
| 32 | | ssin 1659 |
. . . . . . . . . 10
⊢ ((p
⊆ c ∧ p ⊆ (B
∨ℋ A)) ↔ p ⊆ (c
∩ (B ∨ℋ A))) |
| 33 | 31, 32 | bitr 151 |
. . . . . . . . 9
⊢ ((p
⊆ c ∧ p ⊆ (A
∨ℋ B)) ↔ p ⊆ (c
∩ (B ∨ℋ A))) |
| 34 | 28, 33 | syl5ibr 182 |
. . . . . . . 8
⊢ ((((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) ∧ (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B)))) → (p
⊆ (c ∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A))) |
| 35 | 34 | exp 291 |
. . . . . . 7
⊢ (((c
∈ Cℋ ∧ A
⊆ c) ∧ p ∈ Atoms) → ((p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (p
⊆ (c ∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 36 | 35 | r19.20dva 1256 |
. . . . . 6
⊢ ((c
∈ Cℋ ∧ A
⊆ c) → (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → ∀p ∈ Atoms (p ⊆ (c
∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 37 | | chrelat3t 5762 |
. . . . . . . 8
⊢ (((c
∩ (B ∨ℋ A)) ∈ Cℋ ∧
((c ∩ B) ∨ℋ A) ∈ Cℋ ) →
((c ∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A) ↔ ∀p ∈ Atoms (p ⊆ (c
∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 38 | 2, 1 | chjcl 5379 |
. . . . . . . . 9
⊢ (B
∨ℋ A) ∈
Cℋ |
| 39 | | chinclt 5416 |
. . . . . . . . 9
⊢ ((c
∈ Cℋ ∧ (B
∨ℋ A) ∈
Cℋ ) → (c
∩ (B ∨ℋ A)) ∈ Cℋ ) |
| 40 | 38, 39 | mpan2 519 |
. . . . . . . 8
⊢ (c
∈ Cℋ → (c
∩ (B ∨ℋ A)) ∈ Cℋ ) |
| 41 | | chjclt 5330 |
. . . . . . . . . 10
⊢ (((c
∩ B) ∈ Cℋ
∧ A ∈ Cℋ )
→ ((c ∩ B) ∨ℋ A) ∈ Cℋ ) |
| 42 | 1, 41 | mpan2 519 |
. . . . . . . . 9
⊢ ((c
∩ B) ∈ Cℋ
→ ((c ∩ B) ∨ℋ A) ∈ Cℋ ) |
| 43 | 8, 42 | syl 12 |
. . . . . . . 8
⊢ (c
∈ Cℋ → ((c ∩ B)
∨ℋ A) ∈
Cℋ ) |
| 44 | 37, 40, 43 | sylanc 361 |
. . . . . . 7
⊢ (c
∈ Cℋ → ((c ∩ (B
∨ℋ A)) ⊆
((c ∩ B) ∨ℋ A) ↔ ∀p ∈ Atoms (p ⊆ (c
∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 45 | 44 | adantr 306 |
. . . . . 6
⊢ ((c
∈ Cℋ ∧ A
⊆ c) → ((c ∩ (B
∨ℋ A)) ⊆
((c ∩ B) ∨ℋ A) ↔ ∀p ∈ Atoms (p ⊆ (c
∩ (B ∨ℋ A)) → p
⊆ ((c ∩ B) ∨ℋ A)))) |
| 46 | 36, 45 | sylibrd 179 |
. . . . 5
⊢ ((c
∈ Cℋ ∧ A
⊆ c) → (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (c
∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A))) |
| 47 | 46 | exp 291 |
. . . 4
⊢ (c
∈ Cℋ → (A
⊆ c → (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (c
∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A)))) |
| 48 | 47 | com3r 35 |
. . 3
⊢ (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (c
∈ Cℋ → (A
⊆ c → (c ∩ (B
∨ℋ A)) ⊆
((c ∩ B) ∨ℋ A)))) |
| 49 | 48 | r19.21aiv 1259 |
. 2
⊢ (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → ∀c ∈ Cℋ (A ⊆ c
→ (c ∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A))) |
| 50 | | dmdbr2 5733 |
. . 3
⊢ ((B
∈ Cℋ ∧ A
∈ Cℋ ) → ((⊥ ‘B) Mℋ (⊥
‘A) ↔ ∀c ∈ Cℋ (A ⊆ c
→ (c ∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A)))) |
| 51 | 2, 1, 50 | mp2an 520 |
. 2
⊢ ((⊥ ‘B) Mℋ (⊥
‘A) ↔ ∀c ∈ Cℋ (A ⊆ c
→ (c ∩ (B ∨ℋ A)) ⊆ ((c
∩ B) ∨ℋ A))) |
| 52 | 49, 51 | sylibr 175 |
1
⊢ (∀p ∈ Atoms (p ⊆ (A
∨ℋ B) →
∃q ∈ Atoms ∃r ∈ Atoms (p ⊆ (q
∨ℋ r) ∧ (q ⊆ A
∧ r ⊆ B))) → (⊥ ‘B) Mℋ (⊥
‘A)) |