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Mirrors > Home > MPE Home > Th. List > Mathboxes > paddssw2 | Structured version Visualization version GIF version |
Description: Subset law for projective subspace sum valid for all subsets of atoms. (Contributed by NM, 14-Mar-2012.) |
Ref | Expression |
---|---|
paddssw.a | ⊢ 𝐴 = (Atoms‘𝐾) |
paddssw.p | ⊢ + = (+𝑃‘𝐾) |
Ref | Expression |
---|---|
paddssw2 | ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → (𝑋 ⊆ 𝑍 ∧ 𝑌 ⊆ 𝑍))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | paddssw.a | . . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾) | |
2 | paddssw.p | . . . . . 6 ⊢ + = (+𝑃‘𝐾) | |
3 | 1, 2 | sspadd1 37452 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → 𝑋 ⊆ (𝑋 + 𝑌)) |
4 | 3 | 3adant3r3 1185 | . . . 4 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑋 ⊆ (𝑋 + 𝑌)) |
5 | sstr 3885 | . . . 4 ⊢ ((𝑋 ⊆ (𝑋 + 𝑌) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑋 ⊆ 𝑍) | |
6 | 4, 5 | sylan 583 | . . 3 ⊢ (((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑋 ⊆ 𝑍) |
7 | 6 | ex 416 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → 𝑋 ⊆ 𝑍)) |
8 | simpl 486 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝐾 ∈ 𝐵) | |
9 | simpr2 1196 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑌 ⊆ 𝐴) | |
10 | simpr1 1195 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑋 ⊆ 𝐴) | |
11 | 1, 2 | sspadd2 37453 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ 𝐴) → 𝑌 ⊆ (𝑋 + 𝑌)) |
12 | 8, 9, 10, 11 | syl3anc 1372 | . . . 4 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑌 ⊆ (𝑋 + 𝑌)) |
13 | sstr 3885 | . . . 4 ⊢ ((𝑌 ⊆ (𝑋 + 𝑌) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑌 ⊆ 𝑍) | |
14 | 12, 13 | sylan 583 | . . 3 ⊢ (((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑌 ⊆ 𝑍) |
15 | 14 | ex 416 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → 𝑌 ⊆ 𝑍)) |
16 | 7, 15 | jcad 516 | 1 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → (𝑋 ⊆ 𝑍 ∧ 𝑌 ⊆ 𝑍))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1088 = wceq 1542 ∈ wcel 2114 ⊆ wss 3843 ‘cfv 6339 (class class class)co 7170 Atomscatm 36900 +𝑃cpadd 37432 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2710 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5232 ax-pr 5296 ax-un 7479 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-ral 3058 df-rex 3059 df-reu 3060 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-op 4523 df-uni 4797 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5429 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-ov 7173 df-oprab 7174 df-mpo 7175 df-1st 7714 df-2nd 7715 df-padd 37433 |
This theorem is referenced by: paddss 37482 |
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