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Mirrors > Home > MPE Home > Th. List > Mathboxes > paddssat | Structured version Visualization version GIF version |
Description: A projective subspace sum is a set of atoms. (Contributed by NM, 3-Jan-2012.) |
Ref | Expression |
---|---|
padd0.a | ⊢ 𝐴 = (Atoms‘𝐾) |
padd0.p | ⊢ + = (+𝑃‘𝐾) |
Ref | Expression |
---|---|
paddssat | ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → (𝑋 + 𝑌) ⊆ 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2738 | . . 3 ⊢ (le‘𝐾) = (le‘𝐾) | |
2 | eqid 2738 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
3 | padd0.a | . . 3 ⊢ 𝐴 = (Atoms‘𝐾) | |
4 | padd0.p | . . 3 ⊢ + = (+𝑃‘𝐾) | |
5 | 1, 2, 3, 4 | paddval 37739 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → (𝑋 + 𝑌) = ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)})) |
6 | unss 4114 | . . . . . 6 ⊢ ((𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) ↔ (𝑋 ∪ 𝑌) ⊆ 𝐴) | |
7 | 6 | biimpi 215 | . . . . 5 ⊢ ((𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → (𝑋 ∪ 𝑌) ⊆ 𝐴) |
8 | ssrab2 4009 | . . . . 5 ⊢ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)} ⊆ 𝐴 | |
9 | 7, 8 | jctir 520 | . . . 4 ⊢ ((𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → ((𝑋 ∪ 𝑌) ⊆ 𝐴 ∧ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)} ⊆ 𝐴)) |
10 | unss 4114 | . . . 4 ⊢ (((𝑋 ∪ 𝑌) ⊆ 𝐴 ∧ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)} ⊆ 𝐴) ↔ ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)}) ⊆ 𝐴) | |
11 | 9, 10 | sylib 217 | . . 3 ⊢ ((𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)}) ⊆ 𝐴) |
12 | 11 | 3adant1 1128 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)}) ⊆ 𝐴) |
13 | 5, 12 | eqsstrd 3955 | 1 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → (𝑋 + 𝑌) ⊆ 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 ∃wrex 3064 {crab 3067 ∪ cun 3881 ⊆ wss 3883 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 lecple 16895 joincjn 17944 Atomscatm 37204 +𝑃cpadd 37736 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-1st 7804 df-2nd 7805 df-padd 37737 |
This theorem is referenced by: paddasslem8 37768 paddasslem11 37771 paddasslem12 37772 paddasslem13 37773 paddasslem16 37776 paddasslem17 37777 paddass 37779 padd4N 37781 paddclN 37783 pmodl42N 37792 pclunN 37839 paddunN 37868 pmapocjN 37871 pclfinclN 37891 osumcllem1N 37897 osumcllem2N 37898 osumcllem9N 37905 osumcllem11N 37907 osumclN 37908 pexmidlem6N 37916 pexmidlem8N 37918 pl42lem3N 37922 |
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