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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 31929 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 +ℋ 𝐵) = ( +ℎ “ (𝐴 × 𝐵))) | |
| 2 | 1 | eleq2d 2850 | . 2 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐶 ∈ (𝐴 +ℋ 𝐵) ↔ 𝐶 ∈ ( +ℎ “ (𝐴 × 𝐵)))) |
| 3 | ax-hfvadd 31617 | . . . 4 ⊢ +ℎ :( ℋ × ℋ)⟶ ℋ | |
| 4 | ffn 6720 | . . . 4 ⊢ ( +ℎ :( ℋ × ℋ)⟶ ℋ → +ℎ Fn ( ℋ × ℋ)) | |
| 5 | 3, 4 | ax-mp 5 | . . 3 ⊢ +ℎ Fn ( ℋ × ℋ) |
| 6 | shss 31827 | . . . 4 ⊢ (𝐴 ∈ Sℋ → 𝐴 ⊆ ℋ) | |
| 7 | shss 31827 | . . . 4 ⊢ (𝐵 ∈ Sℋ → 𝐵 ⊆ ℋ) | |
| 8 | xpss12 5670 | . . . 4 ⊢ ((𝐴 ⊆ ℋ ∧ 𝐵 ⊆ ℋ) → (𝐴 × 𝐵) ⊆ ( ℋ × ℋ)) | |
| 9 | 6, 7, 8 | syl2an 608 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 × 𝐵) ⊆ ( ℋ × ℋ)) |
| 10 | ovelimab 7609 | . . 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 599 | . 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 401 = wceq 1569 ∈ wcel 2146 ∃wrex 3090 ⊆ wss 3900 × cxp 5653 “ cima 5658 Fn wfn 6542 ⟶wf 6543 (class class class)co 7430 ℋchba 31536 +ℎ cva 31537 Sℋ csh 31545 +ℋ cph 31548 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-resscn 11270 ax-1cn 11271 ax-icn 11272 ax-addcl 11273 ax-addrcl 11274 ax-mulcl 11275 ax-mulrcl 11276 ax-mulcom 11277 ax-addass 11278 ax-mulass 11279 ax-distr 11280 ax-i2m1 11281 ax-1ne0 11282 ax-1rid 11283 ax-rnegex 11284 ax-rrecex 11285 ax-cnre 11286 ax-pre-lttri 11287 ax-pre-lttrn 11288 ax-pre-ltadd 11289 ax-hilex 31616 ax-hfvadd 31617 ax-hvcom 31618 ax-hvass 31619 ax-hv0cl 31620 ax-hvaddid 31621 ax-hfvmul 31622 ax-hvmulid 31623 ax-hvdistr2 31626 ax-hvmul0 31627 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-er 8731 df-en 8988 df-dom 8989 df-sdom 8990 df-pnf 11358 df-mnf 11359 df-ltxr 11361 df-sub 11556 df-neg 11557 df-grpo 31110 df-ablo 31162 df-hvsub 31588 df-sh 31824 df-shs 31925 |
| This theorem is used by: shsel3 31932 shseli 31933 shscom 31936 shsva 31937 shless 31976 pjhth 32010 pjhtheu 32011 pjpreeq 32015 pjpjpre 32036 chscllem4 32257 sumdmdii 33032 sumdmdlem 33035 |
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