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Mathbox for Norm Megill |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > elpadd2at | Structured version Visualization version GIF version |
Description: Membership in a projective subspace sum of two points. (Contributed by NM, 29-Jan-2012.) |
Ref | Expression |
---|---|
paddfval.l | ⊢ ≤ = (le‘𝐾) |
paddfval.j | ⊢ ∨ = (join‘𝐾) |
paddfval.a | ⊢ 𝐴 = (Atoms‘𝐾) |
paddfval.p | ⊢ + = (+𝑃‘𝐾) |
Ref | Expression |
---|---|
elpadd2at | ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → (𝑆 ∈ ({𝑄} + {𝑅}) ↔ (𝑆 ∈ 𝐴 ∧ 𝑆 ≤ (𝑄 ∨ 𝑅)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1134 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → 𝐾 ∈ Lat) | |
2 | simp2 1135 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → 𝑄 ∈ 𝐴) | |
3 | 2 | snssd 4692 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → {𝑄} ⊆ 𝐴) |
4 | simp3 1136 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → 𝑅 ∈ 𝐴) | |
5 | snnzg 4660 | . . . 4 ⊢ (𝑄 ∈ 𝐴 → {𝑄} ≠ ∅) | |
6 | 5 | 3ad2ant2 1132 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → {𝑄} ≠ ∅) |
7 | paddfval.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
8 | paddfval.j | . . . 4 ⊢ ∨ = (join‘𝐾) | |
9 | paddfval.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
10 | paddfval.p | . . . 4 ⊢ + = (+𝑃‘𝐾) | |
11 | 7, 8, 9, 10 | elpaddat 37365 | . . 3 ⊢ (((𝐾 ∈ Lat ∧ {𝑄} ⊆ 𝐴 ∧ 𝑅 ∈ 𝐴) ∧ {𝑄} ≠ ∅) → (𝑆 ∈ ({𝑄} + {𝑅}) ↔ (𝑆 ∈ 𝐴 ∧ ∃𝑟 ∈ {𝑄}𝑆 ≤ (𝑟 ∨ 𝑅)))) |
12 | 1, 3, 4, 6, 11 | syl31anc 1371 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → (𝑆 ∈ ({𝑄} + {𝑅}) ↔ (𝑆 ∈ 𝐴 ∧ ∃𝑟 ∈ {𝑄}𝑆 ≤ (𝑟 ∨ 𝑅)))) |
13 | oveq1 7150 | . . . . . 6 ⊢ (𝑟 = 𝑄 → (𝑟 ∨ 𝑅) = (𝑄 ∨ 𝑅)) | |
14 | 13 | breq2d 5037 | . . . . 5 ⊢ (𝑟 = 𝑄 → (𝑆 ≤ (𝑟 ∨ 𝑅) ↔ 𝑆 ≤ (𝑄 ∨ 𝑅))) |
15 | 14 | rexsng 4564 | . . . 4 ⊢ (𝑄 ∈ 𝐴 → (∃𝑟 ∈ {𝑄}𝑆 ≤ (𝑟 ∨ 𝑅) ↔ 𝑆 ≤ (𝑄 ∨ 𝑅))) |
16 | 15 | 3ad2ant2 1132 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → (∃𝑟 ∈ {𝑄}𝑆 ≤ (𝑟 ∨ 𝑅) ↔ 𝑆 ≤ (𝑄 ∨ 𝑅))) |
17 | 16 | anbi2d 632 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → ((𝑆 ∈ 𝐴 ∧ ∃𝑟 ∈ {𝑄}𝑆 ≤ (𝑟 ∨ 𝑅)) ↔ (𝑆 ∈ 𝐴 ∧ 𝑆 ≤ (𝑄 ∨ 𝑅)))) |
18 | 12, 17 | bitrd 282 | 1 ⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → (𝑆 ∈ ({𝑄} + {𝑅}) ↔ (𝑆 ∈ 𝐴 ∧ 𝑆 ≤ (𝑄 ∨ 𝑅)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 ∧ w3a 1085 = wceq 1539 ∈ wcel 2112 ≠ wne 2949 ∃wrex 3069 ⊆ wss 3854 ∅c0 4221 {csn 4515 class class class wbr 5025 ‘cfv 6328 (class class class)co 7143 lecple 16615 joincjn 17605 Latclat 17706 Atomscatm 36824 +𝑃cpadd 37356 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1912 ax-6 1971 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2159 ax-12 2176 ax-ext 2730 ax-rep 5149 ax-sep 5162 ax-nul 5169 ax-pow 5227 ax-pr 5291 ax-un 7452 |
This theorem depends on definitions: df-bi 210 df-an 401 df-or 846 df-3an 1087 df-tru 1542 df-ex 1783 df-nf 1787 df-sb 2071 df-mo 2558 df-eu 2589 df-clab 2737 df-cleq 2751 df-clel 2831 df-nfc 2899 df-ne 2950 df-ral 3073 df-rex 3074 df-reu 3075 df-rab 3077 df-v 3409 df-sbc 3694 df-csb 3802 df-dif 3857 df-un 3859 df-in 3861 df-ss 3871 df-nul 4222 df-if 4414 df-pw 4489 df-sn 4516 df-pr 4518 df-op 4522 df-uni 4792 df-iun 4878 df-br 5026 df-opab 5088 df-mpt 5106 df-id 5423 df-xp 5523 df-rel 5524 df-cnv 5525 df-co 5526 df-dm 5527 df-rn 5528 df-res 5529 df-ima 5530 df-iota 6287 df-fun 6330 df-fn 6331 df-f 6332 df-f1 6333 df-fo 6334 df-f1o 6335 df-fv 6336 df-riota 7101 df-ov 7146 df-oprab 7147 df-mpo 7148 df-1st 7686 df-2nd 7687 df-lub 17635 df-join 17637 df-lat 17707 df-ats 36828 df-padd 37357 |
This theorem is referenced by: elpadd2at2 37368 |
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