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Mirrors > Home > MPE Home > Th. List > Mathboxes > sspadd1 | Structured version Visualization version GIF version |
Description: A projective subspace sum is a superset of its first summand. (ssun1 4148 analog.) (Contributed by NM, 3-Jan-2012.) |
Ref | Expression |
---|---|
padd0.a | ⊢ 𝐴 = (Atoms‘𝐾) |
padd0.p | ⊢ + = (+𝑃‘𝐾) |
Ref | Expression |
---|---|
sspadd1 | ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → 𝑋 ⊆ (𝑋 + 𝑌)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssun1 4148 | . . 3 ⊢ 𝑋 ⊆ (𝑋 ∪ 𝑌) | |
2 | ssun1 4148 | . . 3 ⊢ (𝑋 ∪ 𝑌) ⊆ ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)}) | |
3 | 1, 2 | sstri 3976 | . 2 ⊢ 𝑋 ⊆ ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)}) |
4 | eqid 2821 | . . 3 ⊢ (le‘𝐾) = (le‘𝐾) | |
5 | eqid 2821 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
6 | padd0.a | . . 3 ⊢ 𝐴 = (Atoms‘𝐾) | |
7 | padd0.p | . . 3 ⊢ + = (+𝑃‘𝐾) | |
8 | 4, 5, 6, 7 | paddval 36949 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → (𝑋 + 𝑌) = ((𝑋 ∪ 𝑌) ∪ {𝑝 ∈ 𝐴 ∣ ∃𝑞 ∈ 𝑋 ∃𝑟 ∈ 𝑌 𝑝(le‘𝐾)(𝑞(join‘𝐾)𝑟)})) |
9 | 3, 8 | sseqtrrid 4020 | 1 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → 𝑋 ⊆ (𝑋 + 𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1083 = wceq 1537 ∈ wcel 2114 ∃wrex 3139 {crab 3142 ∪ cun 3934 ⊆ wss 3936 class class class wbr 5066 ‘cfv 6355 (class class class)co 7156 lecple 16572 joincjn 17554 Atomscatm 36414 +𝑃cpadd 36946 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-1st 7689 df-2nd 7690 df-padd 36947 |
This theorem is referenced by: paddasslem13 36983 paddasslem17 36987 paddidm 36992 paddssw2 36995 pmodlem1 36997 pmodlem2 36998 pmodl42N 37002 osumcllem1N 37107 osumcllem2N 37108 osumcllem10N 37116 pexmidlem6N 37126 pexmidlem7N 37127 |
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