| Step | Hyp | Ref | Expression | 
|---|
| 1 |  | dihval.s | . . 3
⊢ 𝑆 = (LSubSp‘𝑈) | 
| 2 | 1 | fvexi 6920 | . 2
⊢ 𝑆 ∈ V | 
| 3 |  | nfv 1914 | . . 3
⊢
Ⅎ𝑞((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) | 
| 4 |  | nfvd 1915 | . . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → Ⅎ𝑞(𝐼‘𝑋) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))) | 
| 5 |  | dihval.b | . . . . 5
⊢ 𝐵 = (Base‘𝐾) | 
| 6 |  | dihval.l | . . . . 5
⊢  ≤ =
(le‘𝐾) | 
| 7 |  | dihval.j | . . . . 5
⊢  ∨ =
(join‘𝐾) | 
| 8 |  | dihval.m | . . . . 5
⊢  ∧ =
(meet‘𝐾) | 
| 9 |  | dihval.a | . . . . 5
⊢ 𝐴 = (Atoms‘𝐾) | 
| 10 |  | dihval.h | . . . . 5
⊢ 𝐻 = (LHyp‘𝐾) | 
| 11 |  | dihval.i | . . . . 5
⊢ 𝐼 = ((DIsoH‘𝐾)‘𝑊) | 
| 12 |  | dihval.d | . . . . 5
⊢ 𝐷 = ((DIsoB‘𝐾)‘𝑊) | 
| 13 |  | dihval.c | . . . . 5
⊢ 𝐶 = ((DIsoC‘𝐾)‘𝑊) | 
| 14 |  | dihval.u | . . . . 5
⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊) | 
| 15 |  | dihval.p | . . . . 5
⊢  ⊕ =
(LSSum‘𝑈) | 
| 16 | 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 1, 15 | dihvalc 41235 | . . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) = (℩𝑢 ∈ 𝑆 ∀𝑞 ∈ 𝐴 ((¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋) → 𝑢 = ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))))) | 
| 17 | 16 | 3adant3 1133 | . . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → (𝐼‘𝑋) = (℩𝑢 ∈ 𝑆 ∀𝑞 ∈ 𝐴 ((¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋) → 𝑢 = ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))))) | 
| 18 |  | eqeq1 2741 | . . . 4
⊢ (((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = (𝐼‘𝑋) → (((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) ↔ (𝐼‘𝑋) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊))))) | 
| 19 | 18 | adantl 481 | . . 3
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = (𝐼‘𝑋)) → (((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) ↔ (𝐼‘𝑋) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊))))) | 
| 20 |  | simpl1 1192 | . . . . 5
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻)) | 
| 21 |  | simprl 771 | . . . . . 6
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → 𝑞 ∈ 𝐴) | 
| 22 |  | simprrl 781 | . . . . . 6
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → ¬ 𝑞 ≤ 𝑊) | 
| 23 | 21, 22 | jca 511 | . . . . 5
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝑞 ∈ 𝐴 ∧ ¬ 𝑞 ≤ 𝑊)) | 
| 24 |  | simpl3l 1229 | . . . . 5
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) | 
| 25 |  | simpl2l 1227 | . . . . 5
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → 𝑋 ∈ 𝐵) | 
| 26 |  | simprrr 782 | . . . . . 6
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋) | 
| 27 |  | simpl3r 1230 | . . . . . 6
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋) | 
| 28 | 26, 27 | eqtr4d 2780 | . . . . 5
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → (𝑞 ∨ (𝑋 ∧ 𝑊)) = (𝑄 ∨ (𝑋 ∧ 𝑊))) | 
| 29 | 5, 6, 7, 8, 9, 10,
12, 13, 14, 15 | dihjust 41219 | . . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑞 ∈ 𝐴 ∧ ¬ 𝑞 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ 𝑋 ∈ 𝐵) ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = (𝑄 ∨ (𝑋 ∧ 𝑊))) → ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))) | 
| 30 | 20, 23, 24, 25, 28, 29 | syl131anc 1385 | . . . 4
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ (𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋))) → ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))) | 
| 31 | 30 | ex 412 | . . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → ((𝑞 ∈ 𝐴 ∧ (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → ((𝐶‘𝑞) ⊕ (𝐷‘(𝑋 ∧ 𝑊))) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊))))) | 
| 32 | 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 1, 15 | dihlsscpre 41236 | . . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) ∈ 𝑆) | 
| 33 | 32 | 3adant3 1133 | . . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → (𝐼‘𝑋) ∈ 𝑆) | 
| 34 | 5, 6, 7, 8, 9, 10 | lhpmcvr2 40026 | . . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) | 
| 35 | 34 | 3adant3 1133 | . . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → ∃𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 ∧ (𝑞 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) | 
| 36 | 3, 4, 17, 19, 31, 33, 35 | riotasv3d 38961 | . 2
⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) ∧ 𝑆 ∈ V) → (𝐼‘𝑋) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))) | 
| 37 | 2, 36 | mpan2 691 | 1
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑄 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → (𝐼‘𝑋) = ((𝐶‘𝑄) ⊕ (𝐷‘(𝑋 ∧ 𝑊)))) |