| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > isline2 | Structured version Visualization version GIF version | ||
| Description: Definition of line in terms of projective map. (Contributed by NM, 25-Jan-2012.) |
| Ref | Expression |
|---|---|
| isline2.j | ⊢ ∨ = (join‘𝐾) |
| isline2.a | ⊢ 𝐴 = (Atoms‘𝐾) |
| isline2.n | ⊢ 𝑁 = (Lines‘𝐾) |
| isline2.m | ⊢ 𝑀 = (pmap‘𝐾) |
| Ref | Expression |
|---|---|
| isline2 | ⊢ (𝐾 ∈ Lat → (𝑋 ∈ 𝑁 ↔ ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≠ 𝑞 ∧ 𝑋 = (𝑀‘(𝑝 ∨ 𝑞))))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2763 | . . 3 ⊢ (le‘𝐾) = (le‘𝐾) | |
| 2 | isline2.j | . . 3 ⊢ ∨ = (join‘𝐾) | |
| 3 | isline2.a | . . 3 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 4 | isline2.n | . . 3 ⊢ 𝑁 = (Lines‘𝐾) | |
| 5 | 1, 2, 3, 4 | isline 41062 | . 2 ⊢ (𝐾 ∈ Lat → (𝑋 ∈ 𝑁 ↔ ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≠ 𝑞 ∧ 𝑋 = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)}))) |
| 6 | simpl 488 | . . . . . . 7 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → 𝐾 ∈ Lat) | |
| 7 | eqid 2763 | . . . . . . . . 9 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 8 | 7, 3 | atbase 40612 | . . . . . . . 8 ⊢ (𝑝 ∈ 𝐴 → 𝑝 ∈ (Base‘𝐾)) |
| 9 | 8 | ad2antrl 741 | . . . . . . 7 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → 𝑝 ∈ (Base‘𝐾)) |
| 10 | 7, 3 | atbase 40612 | . . . . . . . 8 ⊢ (𝑞 ∈ 𝐴 → 𝑞 ∈ (Base‘𝐾)) |
| 11 | 10 | ad2antll 742 | . . . . . . 7 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → 𝑞 ∈ (Base‘𝐾)) |
| 12 | 7, 2 | latjcl 18663 | . . . . . . 7 ⊢ ((𝐾 ∈ Lat ∧ 𝑝 ∈ (Base‘𝐾) ∧ 𝑞 ∈ (Base‘𝐾)) → (𝑝 ∨ 𝑞) ∈ (Base‘𝐾)) |
| 13 | 6, 9, 11, 12 | syl3anc 1399 | . . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → (𝑝 ∨ 𝑞) ∈ (Base‘𝐾)) |
| 14 | isline2.m | . . . . . . 7 ⊢ 𝑀 = (pmap‘𝐾) | |
| 15 | 7, 1, 3, 14 | pmapval 41080 | . . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∨ 𝑞) ∈ (Base‘𝐾)) → (𝑀‘(𝑝 ∨ 𝑞)) = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)}) |
| 16 | 13, 15 | syldan 603 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → (𝑀‘(𝑝 ∨ 𝑞)) = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)}) |
| 17 | 16 | eqeq2d 2774 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → (𝑋 = (𝑀‘(𝑝 ∨ 𝑞)) ↔ 𝑋 = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)})) |
| 18 | 17 | anbi2d 642 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑝 ∈ 𝐴 ∧ 𝑞 ∈ 𝐴)) → ((𝑝 ≠ 𝑞 ∧ 𝑋 = (𝑀‘(𝑝 ∨ 𝑞))) ↔ (𝑝 ≠ 𝑞 ∧ 𝑋 = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)}))) |
| 19 | 18 | 2rexbidva 3229 | . 2 ⊢ (𝐾 ∈ Lat → (∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≠ 𝑞 ∧ 𝑋 = (𝑀‘(𝑝 ∨ 𝑞))) ↔ ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≠ 𝑞 ∧ 𝑋 = {𝑟 ∈ 𝐴 ∣ 𝑟(le‘𝐾)(𝑝 ∨ 𝑞)}))) |
| 20 | 5, 19 | bitr4d 285 | 1 ⊢ (𝐾 ∈ Lat → (𝑋 ∈ 𝑁 ↔ ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≠ 𝑞 ∧ 𝑋 = (𝑀‘(𝑝 ∨ 𝑞))))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ≠ wne 2959 ∃wrex 3090 {crab 3416 class class class wbr 5108 ‘cfv 6566 (class class class)co 7451 Basecbs 17431 lecple 17479 joincjn 18535 Latclat 18655 Atomscatm 40586 Linesclines 40817 pmapcpmap 40820 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5238 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-lub 18568 df-glb 18569 df-join 18570 df-meet 18571 df-lat 18656 df-ats 40590 df-lines 40824 df-pmap 40827 |
| This theorem is used by: isline3 41099 lncvrelatN 41104 linepsubclN 41274 |
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