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Mirrors > Home > HSE Home > Th. List > shsval | Structured version Visualization version GIF version |
Description: Value of subspace sum of two Hilbert space subspaces. Definition of subspace sum in [Kalmbach] p. 65. (Contributed by NM, 16-Oct-1999.) (Revised by Mario Carneiro, 23-Dec-2013.) (New usage is discouraged.) |
Ref | Expression |
---|---|
shsval | ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 +ℋ 𝐵) = ( +ℎ “ (𝐴 × 𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xpeq12 5695 | . . 3 ⊢ ((𝑥 = 𝐴 ∧ 𝑦 = 𝐵) → (𝑥 × 𝑦) = (𝐴 × 𝐵)) | |
2 | 1 | imaeq2d 6050 | . 2 ⊢ ((𝑥 = 𝐴 ∧ 𝑦 = 𝐵) → ( +ℎ “ (𝑥 × 𝑦)) = ( +ℎ “ (𝐴 × 𝐵))) |
3 | df-shs 30488 | . 2 ⊢ +ℋ = (𝑥 ∈ Sℋ , 𝑦 ∈ Sℋ ↦ ( +ℎ “ (𝑥 × 𝑦))) | |
4 | hilablo 30340 | . . 3 ⊢ +ℎ ∈ AbelOp | |
5 | imaexg 7890 | . . 3 ⊢ ( +ℎ ∈ AbelOp → ( +ℎ “ (𝐴 × 𝐵)) ∈ V) | |
6 | 4, 5 | ax-mp 5 | . 2 ⊢ ( +ℎ “ (𝐴 × 𝐵)) ∈ V |
7 | 2, 3, 6 | ovmpoa 7547 | 1 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 +ℋ 𝐵) = ( +ℎ “ (𝐴 × 𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 Vcvv 3474 × cxp 5668 “ cima 5673 (class class class)co 7394 AbelOpcablo 29724 +ℎ cva 30100 Sℋ csh 30108 +ℋ cph 30111 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5357 ax-pr 5421 ax-un 7709 ax-resscn 11151 ax-1cn 11152 ax-icn 11153 ax-addcl 11154 ax-addrcl 11155 ax-mulcl 11156 ax-mulrcl 11157 ax-mulcom 11158 ax-addass 11159 ax-mulass 11160 ax-distr 11161 ax-i2m1 11162 ax-1ne0 11163 ax-1rid 11164 ax-rnegex 11165 ax-rrecex 11166 ax-cnre 11167 ax-pre-lttri 11168 ax-pre-lttrn 11169 ax-pre-ltadd 11170 ax-hilex 30179 ax-hfvadd 30180 ax-hvcom 30181 ax-hvass 30182 ax-hv0cl 30183 ax-hvaddid 30184 ax-hfvmul 30185 ax-hvmulid 30186 ax-hvdistr2 30189 ax-hvmul0 30190 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-nul 4320 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-id 5568 df-po 5582 df-so 5583 df-xp 5676 df-rel 5677 df-cnv 5678 df-co 5679 df-dm 5680 df-rn 5681 df-res 5682 df-ima 5683 df-iota 6485 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7350 df-ov 7397 df-oprab 7398 df-mpo 7399 df-er 8688 df-en 8925 df-dom 8926 df-sdom 8927 df-pnf 11234 df-mnf 11235 df-ltxr 11237 df-sub 11430 df-neg 11431 df-grpo 29673 df-ablo 29725 df-hvsub 30151 df-shs 30488 |
This theorem is referenced by: shsss 30493 shsel 30494 |
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