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| Mirrors > Home > HSE Home > Th. List > hhssablo | Structured version Visualization version GIF version | ||
| Description: Abelian group property of subspace addition. (Contributed by NM, 9-Apr-2008.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hhssablo | ⊢ (𝐻 ∈ Sℋ → ( +ℎ ↾ (𝐻 × 𝐻)) ∈ AbelOp) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpeq1 5638 | . . . . 5 ⊢ (𝐻 = if(𝐻 ∈ Sℋ , 𝐻, ℋ) → (𝐻 × 𝐻) = (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × 𝐻)) | |
| 2 | xpeq2 5645 | . . . . 5 ⊢ (𝐻 = if(𝐻 ∈ Sℋ , 𝐻, ℋ) → (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × 𝐻) = (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × if(𝐻 ∈ Sℋ , 𝐻, ℋ))) | |
| 3 | 1, 2 | eqtrd 2772 | . . . 4 ⊢ (𝐻 = if(𝐻 ∈ Sℋ , 𝐻, ℋ) → (𝐻 × 𝐻) = (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × if(𝐻 ∈ Sℋ , 𝐻, ℋ))) |
| 4 | 3 | reseq2d 5938 | . . 3 ⊢ (𝐻 = if(𝐻 ∈ Sℋ , 𝐻, ℋ) → ( +ℎ ↾ (𝐻 × 𝐻)) = ( +ℎ ↾ (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × if(𝐻 ∈ Sℋ , 𝐻, ℋ)))) |
| 5 | 4 | eleq1d 2822 | . 2 ⊢ (𝐻 = if(𝐻 ∈ Sℋ , 𝐻, ℋ) → (( +ℎ ↾ (𝐻 × 𝐻)) ∈ AbelOp ↔ ( +ℎ ↾ (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × if(𝐻 ∈ Sℋ , 𝐻, ℋ))) ∈ AbelOp)) |
| 6 | helsh 31331 | . . . 4 ⊢ ℋ ∈ Sℋ | |
| 7 | 6 | elimel 4537 | . . 3 ⊢ if(𝐻 ∈ Sℋ , 𝐻, ℋ) ∈ Sℋ |
| 8 | 7 | hhssabloi 31348 | . 2 ⊢ ( +ℎ ↾ (if(𝐻 ∈ Sℋ , 𝐻, ℋ) × if(𝐻 ∈ Sℋ , 𝐻, ℋ))) ∈ AbelOp |
| 9 | 5, 8 | dedth 4526 | 1 ⊢ (𝐻 ∈ Sℋ → ( +ℎ ↾ (𝐻 × 𝐻)) ∈ AbelOp) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ifcif 4467 × cxp 5622 ↾ cres 5626 AbelOpcablo 30630 ℋchba 31005 +ℎ cva 31006 Sℋ csh 31014 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-pre-sup 11107 ax-hilex 31085 ax-hfvadd 31086 ax-hvcom 31087 ax-hvass 31088 ax-hv0cl 31089 ax-hvaddid 31090 ax-hfvmul 31091 ax-hvmulid 31092 ax-hvmulass 31093 ax-hvdistr1 31094 ax-hvdistr2 31095 ax-hvmul0 31096 ax-hfi 31165 ax-his1 31168 ax-his2 31169 ax-his3 31170 ax-his4 31171 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-er 8636 df-map 8768 df-en 8887 df-dom 8888 df-sdom 8889 df-sup 9348 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-n0 12429 df-z 12516 df-uz 12780 df-rp 12934 df-seq 13955 df-exp 14015 df-cj 15052 df-re 15053 df-im 15054 df-sqrt 15188 df-abs 15189 df-grpo 30579 df-gid 30580 df-ginv 30581 df-ablo 30631 df-vc 30645 df-nv 30678 df-va 30681 df-ba 30682 df-sm 30683 df-0v 30684 df-nmcv 30686 df-hnorm 31054 df-hba 31055 df-hvsub 31057 df-hlim 31058 df-sh 31293 df-ch 31307 |
| This theorem is referenced by: (None) |
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