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| Mirrors > Home > HSE Home > Th. List > shsel | Structured version Visualization version GIF version | ||
| Description: Membership in the subspace sum of two Hilbert subspaces. (Contributed by NM, 14-Dec-2004.) (Revised by Mario Carneiro, 29-Jan-2014.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shsel | ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑦))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shsval 31673 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 +ℋ 𝐵) = ( +ℎ “ (𝐴 × 𝐵))) | |
| 2 | 1 | eleq2d 2849 | . 2 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ 𝐶 ∈ ( +ℎ “ (𝐴 × 𝐵)))) |
| 3 | ax-hfvadd 31361 | . . . 4 ⊢ +ℎ :( ℋ × ℋ)⟶ ℋ | |
| 4 | ffn 6705 | . . . 4 ⊢ ( +ℎ :( ℋ × ℋ)⟶ ℋ → +ℎ Fn ( ℋ × ℋ)) | |
| 5 | 3, 4 | ax-mp 5 | . . 3 ⊢ +ℎ Fn ( ℋ × ℋ) |
| 6 | shss 31571 | . . . 4 ⊢ (𝐴 ∈ Sℋ → 𝐴 ⊆ ℋ) | |
| 7 | shss 31571 | . . . 4 ⊢ (𝐵 ∈ Sℋ → 𝐵 ⊆ ℋ) | |
| 8 | xpss12 5676 | . . . 4 ⊢ ((𝐴 ⊆ ℋ ∧ 𝐵 ⊆ ℋ) → (𝐴 × 𝐵) ⊆ ( ℋ × ℋ)) | |
| 9 | 6, 7, 8 | syl2an 607 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 × 𝐵) ⊆ ( ℋ × ℋ)) |
| 10 | ovelimab 7588 | . . 3 ⊢ (( +ℎ Fn ( ℋ × ℋ) ∧ (𝐴 × 𝐵) ⊆ ( ℋ × ℋ)) → (𝐶 ∈ ( +ℎ “ (𝐴 × 𝐵)) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑦))) | |
| 11 | 5, 9, 10 | sylancr 598 | . 2 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ ( +ℎ “ (𝐴 × 𝐵)) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑦))) |
| 12 | 2, 11 | bitrd 282 | 1 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ ∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝐶 = (𝑥 +ℎ 𝑦))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1570 ∈ wcel 2143 ∃wrex 3089 ⊆ wss 3905 × cxp 5659 “ cima 5664 Fn wfn 6531 ⟶wf 6532 (class class class)co 7410 ℋchba 31280 +ℎ cva 31281 Sℋ csh 31289 +ℋ cph 31292 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5238 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-resscn 11161 ax-1cn 11162 ax-icn 11163 ax-addcl 11164 ax-addrcl 11165 ax-mulcl 11166 ax-mulrcl 11167 ax-mulcom 11168 ax-addass 11169 ax-mulass 11170 ax-distr 11171 ax-i2m1 11172 ax-1ne0 11173 ax-1rid 11174 ax-rnegex 11175 ax-rrecex 11176 ax-cnre 11177 ax-pre-lttri 11178 ax-pre-lttrn 11179 ax-pre-ltadd 11180 ax-hilex 31360 ax-hfvadd 31361 ax-hvcom 31362 ax-hvass 31363 ax-hv0cl 31364 ax-hvaddid 31365 ax-hfvmul 31366 ax-hvmulid 31367 ax-hvdistr2 31370 ax-hvmul0 31371 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-po 5569 df-so 5570 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-er 8690 df-en 8940 df-dom 8941 df-sdom 8942 df-pnf 11249 df-mnf 11250 df-ltxr 11252 df-sub 11447 df-neg 11448 df-grpo 30854 df-ablo 30906 df-hvsub 31332 df-sh 31568 df-shs 31669 |
| This theorem is used by: shsel3 31676 shseli 31677 shscom 31680 shsva 31681 shless 31720 pjhth 31754 pjhtheu 31755 pjpreeq 31759 pjpjpre 31780 chscllem4 32001 sumdmdii 32776 sumdmdlem 32779 |
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