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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 37808 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴) → 𝑋 ⊆ (𝑋 + 𝑌)) |
4 | 3 | 3adant3r3 1182 | . . . 4 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑋 ⊆ (𝑋 + 𝑌)) |
5 | sstr 3933 | . . . 4 ⊢ ((𝑋 ⊆ (𝑋 + 𝑌) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑋 ⊆ 𝑍) | |
6 | 4, 5 | sylan 579 | . . 3 ⊢ (((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑋 ⊆ 𝑍) |
7 | 6 | ex 412 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → 𝑋 ⊆ 𝑍)) |
8 | simpl 482 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝐾 ∈ 𝐵) | |
9 | simpr2 1193 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑌 ⊆ 𝐴) | |
10 | simpr1 1192 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑋 ⊆ 𝐴) | |
11 | 1, 2 | sspadd2 37809 | . . . . 5 ⊢ ((𝐾 ∈ 𝐵 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ 𝐴) → 𝑌 ⊆ (𝑋 + 𝑌)) |
12 | 8, 9, 10, 11 | syl3anc 1369 | . . . 4 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → 𝑌 ⊆ (𝑋 + 𝑌)) |
13 | sstr 3933 | . . . 4 ⊢ ((𝑌 ⊆ (𝑋 + 𝑌) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑌 ⊆ 𝑍) | |
14 | 12, 13 | sylan 579 | . . 3 ⊢ (((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) ∧ (𝑋 + 𝑌) ⊆ 𝑍) → 𝑌 ⊆ 𝑍) |
15 | 14 | ex 412 | . 2 ⊢ ((𝐾 ∈ 𝐵 ∧ (𝑋 ⊆ 𝐴 ∧ 𝑌 ⊆ 𝐴 ∧ 𝑍 ⊆ 𝐴)) → ((𝑋 + 𝑌) ⊆ 𝑍 → 𝑌 ⊆ 𝑍)) |
16 | 7, 15 | jcad 512 | 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 395 ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 ⊆ wss 3891 ‘cfv 6430 (class class class)co 7268 Atomscatm 37256 +𝑃cpadd 37788 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-ov 7271 df-oprab 7272 df-mpo 7273 df-1st 7817 df-2nd 7818 df-padd 37789 |
This theorem is referenced by: paddss 37838 |
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