Proof of Theorem cdlemk39s
| Step | Hyp | Ref | Expression | 
|---|
| 1 |  | simp22l 1292 | . 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → 𝐺 ∈ 𝑇) | 
| 2 |  | cdlemk5.b | . . . . . 6
⊢ 𝐵 = (Base‘𝐾) | 
| 3 |  | cdlemk5.l | . . . . . 6
⊢  ≤ =
(le‘𝐾) | 
| 4 |  | cdlemk5.j | . . . . . 6
⊢  ∨ =
(join‘𝐾) | 
| 5 |  | cdlemk5.m | . . . . . 6
⊢  ∧ =
(meet‘𝐾) | 
| 6 |  | cdlemk5.a | . . . . . 6
⊢ 𝐴 = (Atoms‘𝐾) | 
| 7 |  | cdlemk5.h | . . . . . 6
⊢ 𝐻 = (LHyp‘𝐾) | 
| 8 |  | cdlemk5.t | . . . . . 6
⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊) | 
| 9 |  | cdlemk5.r | . . . . . 6
⊢ 𝑅 = ((trL‘𝐾)‘𝑊) | 
| 10 |  | cdlemk5.z | . . . . . 6
⊢ 𝑍 = ((𝑃 ∨ (𝑅‘𝑏)) ∧ ((𝑁‘𝑃) ∨ (𝑅‘(𝑏 ∘ ◡𝐹)))) | 
| 11 |  | cdlemk5.y | . . . . . 6
⊢ 𝑌 = ((𝑃 ∨ (𝑅‘𝑔)) ∧ (𝑍 ∨ (𝑅‘(𝑔 ∘ ◡𝑏)))) | 
| 12 |  | cdlemk5.x | . . . . . 6
⊢ 𝑋 = (℩𝑧 ∈ 𝑇 ∀𝑏 ∈ 𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅‘𝑏) ≠ (𝑅‘𝐹) ∧ (𝑅‘𝑏) ≠ (𝑅‘𝑔)) → (𝑧‘𝑃) = 𝑌)) | 
| 13 | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 | cdlemk39 40919 | . . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → (𝑅‘𝑋) ≤ (𝑅‘𝑔)) | 
| 14 | 13 | sbcth 3802 | . . . 4
⊢ (𝐺 ∈ 𝑇 → [𝐺 / 𝑔](((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → (𝑅‘𝑋) ≤ (𝑅‘𝑔))) | 
| 15 |  | sbcimg 3836 | . . . 4
⊢ (𝐺 ∈ 𝑇 → ([𝐺 / 𝑔](((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → (𝑅‘𝑋) ≤ (𝑅‘𝑔)) ↔ ([𝐺 / 𝑔]((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → [𝐺 / 𝑔](𝑅‘𝑋) ≤ (𝑅‘𝑔)))) | 
| 16 | 14, 15 | mpbid 232 | . . 3
⊢ (𝐺 ∈ 𝑇 → ([𝐺 / 𝑔]((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → [𝐺 / 𝑔](𝑅‘𝑋) ≤ (𝑅‘𝑔))) | 
| 17 |  | eleq1 2828 | . . . . . . 7
⊢ (𝑔 = 𝐺 → (𝑔 ∈ 𝑇 ↔ 𝐺 ∈ 𝑇)) | 
| 18 |  | neeq1 3002 | . . . . . . 7
⊢ (𝑔 = 𝐺 → (𝑔 ≠ ( I ↾ 𝐵) ↔ 𝐺 ≠ ( I ↾ 𝐵))) | 
| 19 | 17, 18 | anbi12d 632 | . . . . . 6
⊢ (𝑔 = 𝐺 → ((𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ↔ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)))) | 
| 20 | 19 | 3anbi2d 1442 | . . . . 5
⊢ (𝑔 = 𝐺 → (((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ↔ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇))) | 
| 21 | 20 | 3anbi2d 1442 | . . . 4
⊢ (𝑔 = 𝐺 → (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) ↔ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))))) | 
| 22 | 21 | sbcieg 3827 | . . 3
⊢ (𝐺 ∈ 𝑇 → ([𝐺 / 𝑔]((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝑔 ∈ 𝑇 ∧ 𝑔 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) ↔ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))))) | 
| 23 |  | sbcbr12g 5198 | . . . 4
⊢ (𝐺 ∈ 𝑇 → ([𝐺 / 𝑔](𝑅‘𝑋) ≤ (𝑅‘𝑔) ↔ ⦋𝐺 / 𝑔⦌(𝑅‘𝑋) ≤ ⦋𝐺 / 𝑔⦌(𝑅‘𝑔))) | 
| 24 |  | csbfv2g 6954 | . . . . 5
⊢ (𝐺 ∈ 𝑇 → ⦋𝐺 / 𝑔⦌(𝑅‘𝑋) = (𝑅‘⦋𝐺 / 𝑔⦌𝑋)) | 
| 25 |  | csbfv 6955 | . . . . . 6
⊢
⦋𝐺 /
𝑔⦌(𝑅‘𝑔) = (𝑅‘𝐺) | 
| 26 | 25 | a1i 11 | . . . . 5
⊢ (𝐺 ∈ 𝑇 → ⦋𝐺 / 𝑔⦌(𝑅‘𝑔) = (𝑅‘𝐺)) | 
| 27 | 24, 26 | breq12d 5155 | . . . 4
⊢ (𝐺 ∈ 𝑇 → (⦋𝐺 / 𝑔⦌(𝑅‘𝑋) ≤ ⦋𝐺 / 𝑔⦌(𝑅‘𝑔) ↔ (𝑅‘⦋𝐺 / 𝑔⦌𝑋) ≤ (𝑅‘𝐺))) | 
| 28 | 23, 27 | bitrd 279 | . . 3
⊢ (𝐺 ∈ 𝑇 → ([𝐺 / 𝑔](𝑅‘𝑋) ≤ (𝑅‘𝑔) ↔ (𝑅‘⦋𝐺 / 𝑔⦌𝑋) ≤ (𝑅‘𝐺))) | 
| 29 | 16, 22, 28 | 3imtr3d 293 | . 2
⊢ (𝐺 ∈ 𝑇 → (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → (𝑅‘⦋𝐺 / 𝑔⦌𝑋) ≤ (𝑅‘𝐺))) | 
| 30 | 1, 29 | mpcom 38 | 1
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝐹 ∈ 𝑇 ∧ 𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ∈ 𝑇 ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁 ∈ 𝑇) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑅‘𝐹) = (𝑅‘𝑁))) → (𝑅‘⦋𝐺 / 𝑔⦌𝑋) ≤ (𝑅‘𝐺)) |