| Step | Hyp | Ref
| Expression |
|---|
| 1 | | dib11.b |
. . . . 5
⊢ 𝐵 = (Base‘𝐾) |
| 2 | | dib11.l |
. . . . 5
⊢ ≤ =
(le‘𝐾) |
| 3 | | dib11.h |
. . . . 5
⊢ 𝐻 = (LHyp‘𝐾) |
| 4 | | eqid 2737 |
. . . . 5
⊢
((LTrn‘𝐾)‘𝑊) = ((LTrn‘𝐾)‘𝑊) |
| 5 | | eqid 2737 |
. . . . 5
⊢ (𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵)) = (𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵)) |
| 6 | | eqid 2737 |
. . . . 5
⊢
((DIsoA‘𝐾)‘𝑊) = ((DIsoA‘𝐾)‘𝑊) |
| 7 | | dib11.i |
. . . . 5
⊢ 𝐼 = ((DIsoB‘𝐾)‘𝑊) |
| 8 | 1, 2, 3, 4, 5, 6, 7 | dibval2 41549 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) = ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))})) |
| 9 | 8 | 3adant3 1133 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (𝐼‘𝑋) = ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))})) |
| 10 | 1, 2, 3, 4, 5, 6, 7 | dibval2 41549 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (𝐼‘𝑌) = ((((DIsoA‘𝐾)‘𝑊)‘𝑌) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))})) |
| 11 | 10 | 3adant2 1132 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (𝐼‘𝑌) = ((((DIsoA‘𝐾)‘𝑊)‘𝑌) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))})) |
| 12 | 9, 11 | sseq12d 3969 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → ((𝐼‘𝑋) ⊆ (𝐼‘𝑌) ↔ ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ⊆ ((((DIsoA‘𝐾)‘𝑊)‘𝑌) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}))) |
| 13 | 1, 2, 3, 7 | dibn0 41558 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) → (𝐼‘𝑋) ≠ ∅) |
| 14 | 13 | 3adant3 1133 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (𝐼‘𝑋) ≠ ∅) |
| 15 | 9, 14 | eqnetrrd 3001 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → ((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ≠ ∅) |
| 16 | | ssxpb 6142 |
. . 3
⊢
(((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ≠ ∅ →
(((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ⊆ ((((DIsoA‘𝐾)‘𝑊)‘𝑌) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ↔ ((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ∧ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} ⊆ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}))) |
| 17 | 15, 16 | syl 17 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (((((DIsoA‘𝐾)‘𝑊)‘𝑋) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ⊆ ((((DIsoA‘𝐾)‘𝑊)‘𝑌) × {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ↔ ((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ∧ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} ⊆ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}))) |
| 18 | | ssid 3958 |
. . . 4
⊢ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} ⊆ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} |
| 19 | 18 | biantru 529 |
. . 3
⊢
((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ↔ ((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ∧ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} ⊆ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))})) |
| 20 | 1, 2, 3, 6 | diaord 41452 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → ((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ↔ 𝑋 ≤ 𝑌)) |
| 21 | 19, 20 | bitr3id 285 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → (((((DIsoA‘𝐾)‘𝑊)‘𝑋) ⊆ (((DIsoA‘𝐾)‘𝑊)‘𝑌) ∧ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))} ⊆ {(𝑓 ∈ ((LTrn‘𝐾)‘𝑊) ↦ ( I ↾ 𝐵))}) ↔ 𝑋 ≤ 𝑌)) |
| 22 | 12, 17, 21 | 3bitrd 305 |
1
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊) ∧ (𝑌 ∈ 𝐵 ∧ 𝑌 ≤ 𝑊)) → ((𝐼‘𝑋) ⊆ (𝐼‘𝑌) ↔ 𝑋 ≤ 𝑌)) |
