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| Mirrors > Home > MPE Home > Th. List > Mathboxes > idldil | Structured version Visualization version GIF version | ||
| Description: The identity function is a lattice dilation. (Contributed by NM, 18-May-2012.) |
| Ref | Expression |
|---|---|
| idldil.b | ⊢ 𝐵 = (Base‘𝐾) |
| idldil.h | ⊢ 𝐻 = (LHyp‘𝐾) |
| idldil.d | ⊢ 𝐷 = ((LDil‘𝐾)‘𝑊) |
| Ref | Expression |
|---|---|
| idldil | ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑊 ∈ 𝐻) → ( I ↾ 𝐵) ∈ 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | idldil.b | . . . 4 ⊢ 𝐵 = (Base‘𝐾) | |
| 2 | eqid 2764 | . . . 4 ⊢ (LAut‘𝐾) = (LAut‘𝐾) | |
| 3 | 1, 2 | idlaut 40725 | . . 3 ⊢ (𝐾 ∈ 𝐴 → ( I ↾ 𝐵) ∈ (LAut‘𝐾)) |
| 4 | 3 | adantr 484 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑊 ∈ 𝐻) → ( I ↾ 𝐵) ∈ (LAut‘𝐾)) |
| 5 | fvresi 7159 | . . . . 5 ⊢ (𝑥 ∈ 𝐵 → (( I ↾ 𝐵)‘𝑥) = 𝑥) | |
| 6 | 5 | a1d 25 | . . . 4 ⊢ (𝑥 ∈ 𝐵 → (𝑥(le‘𝐾)𝑊 → (( I ↾ 𝐵)‘𝑥) = 𝑥)) |
| 7 | 6 | rgen 3080 | . . 3 ⊢ ∀𝑥 ∈ 𝐵 (𝑥(le‘𝐾)𝑊 → (( I ↾ 𝐵)‘𝑥) = 𝑥) |
| 8 | 7 | a1i 11 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑊 ∈ 𝐻) → ∀𝑥 ∈ 𝐵 (𝑥(le‘𝐾)𝑊 → (( I ↾ 𝐵)‘𝑥) = 𝑥)) |
| 9 | eqid 2764 | . . 3 ⊢ (le‘𝐾) = (le‘𝐾) | |
| 10 | idldil.h | . . 3 ⊢ 𝐻 = (LHyp‘𝐾) | |
| 11 | idldil.d | . . 3 ⊢ 𝐷 = ((LDil‘𝐾)‘𝑊) | |
| 12 | 1, 9, 10, 2, 11 | isldil 40739 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑊 ∈ 𝐻) → (( I ↾ 𝐵) ∈ 𝐷 ↔ (( I ↾ 𝐵) ∈ (LAut‘𝐾) ∧ ∀𝑥 ∈ 𝐵 (𝑥(le‘𝐾)𝑊 → (( I ↾ 𝐵)‘𝑥) = 𝑥)))) |
| 13 | 4, 8, 12 | mpbir2and 723 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑊 ∈ 𝐻) → ( I ↾ 𝐵) ∈ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1562 ∈ wcel 2144 ∀wral 3078 class class class wbr 5102 I cid 5543 ↾ cres 5651 ‘cfv 6523 Basecbs 17247 lecple 17295 LHypclh 40613 LAutclaut 40614 LDilcldil 40729 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-rep 5229 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3079 df-rex 3089 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5544 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-ov 7401 df-oprab 7402 df-mpo 7403 df-map 8812 df-laut 40618 df-ldil 40733 |
| This theorem is referenced by: idltrn 40779 |
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