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| Mirrors > Home > HSE Home > Th. List > shsval3i | Structured version Visualization version GIF version | ||
| Description: An alternate way to express subspace sum. (Contributed by NM, 25-Nov-2004.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shlesb1.1 | ⊢ 𝐴 ∈ Sℋ |
| shlesb1.2 | ⊢ 𝐵 ∈ Sℋ |
| Ref | Expression |
|---|---|
| shsval3i | ⊢ (𝐴 +ℋ 𝐵) = (span‘(𝐴 ∪ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shlesb1.1 | . . 3 ⊢ 𝐴 ∈ Sℋ | |
| 2 | shlesb1.2 | . . 3 ⊢ 𝐵 ∈ Sℋ | |
| 3 | 1, 2 | shsval2i 31445 | . 2 ⊢ (𝐴 +ℋ 𝐵) = ∩ {𝑥 ∈ Sℋ ∣ (𝐴 ∪ 𝐵) ⊆ 𝑥} |
| 4 | 1 | shssii 31271 | . . . 4 ⊢ 𝐴 ⊆ ℋ |
| 5 | 2 | shssii 31271 | . . . 4 ⊢ 𝐵 ⊆ ℋ |
| 6 | 4, 5 | unssi 4144 | . . 3 ⊢ (𝐴 ∪ 𝐵) ⊆ ℋ |
| 7 | spanval 31391 | . . 3 ⊢ ((𝐴 ∪ 𝐵) ⊆ ℋ → (span‘(𝐴 ∪ 𝐵)) = ∩ {𝑥 ∈ Sℋ ∣ (𝐴 ∪ 𝐵) ⊆ 𝑥}) | |
| 8 | 6, 7 | ax-mp 5 | . 2 ⊢ (span‘(𝐴 ∪ 𝐵)) = ∩ {𝑥 ∈ Sℋ ∣ (𝐴 ∪ 𝐵) ⊆ 𝑥} |
| 9 | 3, 8 | eqtr4i 2763 | 1 ⊢ (𝐴 +ℋ 𝐵) = (span‘(𝐴 ∪ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 {crab 3400 ∪ cun 3900 ⊆ wss 3902 ∩ cint 4903 ‘cfv 6493 (class class class)co 7360 ℋchba 30977 Sℋ csh 30986 +ℋ cph 30989 spancspn 30990 |
| 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 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 ax-pre-sup 11108 ax-addf 11109 ax-mulf 11110 ax-hilex 31057 ax-hfvadd 31058 ax-hvcom 31059 ax-hvass 31060 ax-hv0cl 31061 ax-hvaddid 31062 ax-hfvmul 31063 ax-hvmulid 31064 ax-hvmulass 31065 ax-hvdistr1 31066 ax-hvdistr2 31067 ax-hvmul0 31068 ax-hfi 31137 ax-his1 31140 ax-his2 31141 ax-his3 31142 ax-his4 31143 |
| 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 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-map 8769 df-pm 8770 df-en 8888 df-dom 8889 df-sdom 8890 df-sup 9349 df-inf 9350 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 12150 df-2 12212 df-3 12213 df-4 12214 df-n0 12406 df-z 12493 df-uz 12756 df-q 12866 df-rp 12910 df-xneg 13030 df-xadd 13031 df-xmul 13032 df-icc 13272 df-seq 13929 df-exp 13989 df-cj 15026 df-re 15027 df-im 15028 df-sqrt 15162 df-abs 15163 df-topgen 17367 df-psmet 21305 df-xmet 21306 df-met 21307 df-bl 21308 df-mopn 21309 df-top 22842 df-topon 22859 df-bases 22894 df-lm 23177 df-haus 23263 df-grpo 30551 df-gid 30552 df-ginv 30553 df-gdiv 30554 df-ablo 30603 df-vc 30617 df-nv 30650 df-va 30653 df-ba 30654 df-sm 30655 df-0v 30656 df-vs 30657 df-nmcv 30658 df-ims 30659 df-hnorm 31026 df-hvsub 31029 df-hlim 31030 df-sh 31265 df-ch 31279 df-ch0 31311 df-shs 31366 df-span 31367 |
| This theorem is referenced by: shs0i 31507 |
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