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| Mirrors > Home > HSE Home > Th. List > shorth | Structured version Visualization version GIF version | ||
| Description: Members of orthogonal subspaces are orthogonal. (Contributed by NM, 17-Oct-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shorth | ⊢ (𝐻 ∈ Sℋ → (𝐺 ⊆ (⊥‘𝐻) → ((𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻) → (𝐴 ·ih 𝐵) = 0))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 3915 | . . . . . 6 ⊢ (𝐺 ⊆ (⊥‘𝐻) → (𝐴 ∈ 𝐺 → 𝐴 ∈ (⊥‘𝐻))) | |
| 2 | 1 | anim1d 612 | . . . . 5 ⊢ (𝐺 ⊆ (⊥‘𝐻) → ((𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ (⊥‘𝐻) ∧ 𝐵 ∈ 𝐻))) |
| 3 | 2 | imp 406 | . . . 4 ⊢ ((𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻)) → (𝐴 ∈ (⊥‘𝐻) ∧ 𝐵 ∈ 𝐻)) |
| 4 | 3 | ancomd 461 | . . 3 ⊢ ((𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻)) → (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) |
| 5 | shocorth 31363 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → ((𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐵 ·ih 𝐴) = 0)) | |
| 6 | 5 | imp 406 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐵 ·ih 𝐴) = 0) |
| 7 | shss 31281 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → 𝐻 ⊆ ℋ) | |
| 8 | 7 | sseld 3920 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐵 ∈ 𝐻 → 𝐵 ∈ ℋ)) |
| 9 | shocss 31357 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → (⊥‘𝐻) ⊆ ℋ) | |
| 10 | 9 | sseld 3920 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (⊥‘𝐻) → 𝐴 ∈ ℋ)) |
| 11 | 8, 10 | anim12d 610 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ))) |
| 12 | 11 | imp 406 | . . . . 5 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ)) |
| 13 | orthcom 31179 | . . . . 5 ⊢ ((𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ) → ((𝐵 ·ih 𝐴) = 0 ↔ (𝐴 ·ih 𝐵) = 0)) | |
| 14 | 12, 13 | syl 17 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → ((𝐵 ·ih 𝐴) = 0 ↔ (𝐴 ·ih 𝐵) = 0)) |
| 15 | 6, 14 | mpbid 232 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐴 ·ih 𝐵) = 0) |
| 16 | 4, 15 | sylan2 594 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻))) → (𝐴 ·ih 𝐵) = 0) |
| 17 | 16 | exp32 420 | 1 ⊢ (𝐻 ∈ Sℋ → (𝐺 ⊆ (⊥‘𝐻) → ((𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻) → (𝐴 ·ih 𝐵) = 0))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ⊆ wss 3889 ‘cfv 6498 (class class class)co 7367 0cc0 11038 ℋchba 30990 ·ih csp 30993 Sℋ csh 30999 ⊥cort 31001 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-hilex 31070 ax-hfvadd 31071 ax-hv0cl 31074 ax-hfvmul 31076 ax-hvmul0 31081 ax-hfi 31150 ax-his1 31153 ax-his2 31154 ax-his3 31155 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-cj 15061 df-re 15062 df-im 15063 df-sh 31278 df-oc 31323 |
| This theorem is referenced by: pjoi0 31788 |
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