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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 3925 | . . . . . 6 ⊢ (𝐺 ⊆ (⊥‘𝐻) → (𝐴 ∈ 𝐺 → 𝐴 ∈ (⊥‘𝐻))) | |
| 2 | 1 | anim1d 623 | . . . . 5 ⊢ (𝐺 ⊆ (⊥‘𝐻) → ((𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻) → (𝐴 ∈ (⊥‘𝐻) ∧ 𝐵 ∈ 𝐻))) |
| 3 | 2 | imp 412 | . . . 4 ⊢ ((𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻)) → (𝐴 ∈ (⊥‘𝐻) ∧ 𝐵 ∈ 𝐻)) |
| 4 | 3 | ancomd 467 | . . 3 ⊢ ((𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻)) → (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) |
| 5 | shocorth 31887 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → ((𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐵 ·ih 𝐴) = 0)) | |
| 6 | 5 | imp 412 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐵 ·ih 𝐴) = 0) |
| 7 | shss 31805 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → 𝐻 ⊆ ℋ) | |
| 8 | 7 | sseld 3930 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐵 ∈ 𝐻 → 𝐵 ∈ ℋ)) |
| 9 | shocss 31881 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → (⊥‘𝐻) ⊆ ℋ) | |
| 10 | 9 | sseld 3930 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (⊥‘𝐻) → 𝐴 ∈ ℋ)) |
| 11 | 8, 10 | anim12d 621 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ))) |
| 12 | 11 | imp 412 | . . . . 5 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ)) |
| 13 | orthcom 31703 | . . . . 5 ⊢ ((𝐵 ∈ ℋ ∧ 𝐴 ∈ ℋ) → ((𝐵 ·ih 𝐴) = 0 ↔ (𝐴 ·ih 𝐵) = 0)) | |
| 14 | 12, 13 | syl 18 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → ((𝐵 ·ih 𝐴) = 0 ↔ (𝐴 ·ih 𝐵) = 0)) |
| 15 | 6, 14 | mpbid 235 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐵 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) → (𝐴 ·ih 𝐵) = 0) |
| 16 | 4, 15 | sylan2 605 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ (𝐺 ⊆ (⊥‘𝐻) ∧ (𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻))) → (𝐴 ·ih 𝐵) = 0) |
| 17 | 16 | exp32 426 | 1 ⊢ (𝐻 ∈ Sℋ → (𝐺 ⊆ (⊥‘𝐻) → ((𝐴 ∈ 𝐺 ∧ 𝐵 ∈ 𝐻) → (𝐴 ·ih 𝐵) = 0))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ⊆ wss 3899 ‘cfv 6537 (class class class)co 7418 0cc0 11193 ℋchba 31514 ·ih csp 31517 Sℋ csh 31523 ⊥cort 31525 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 ax-resscn 11250 ax-1cn 11251 ax-icn 11252 ax-addcl 11253 ax-addrcl 11254 ax-mulcl 11255 ax-mulrcl 11256 ax-mulcom 11257 ax-addass 11258 ax-mulass 11259 ax-distr 11260 ax-i2m1 11261 ax-1ne0 11262 ax-1rid 11263 ax-rnegex 11264 ax-rrecex 11265 ax-cnre 11266 ax-pre-lttri 11267 ax-pre-lttrn 11268 ax-pre-ltadd 11269 ax-pre-mulgt0 11270 ax-hilex 31594 ax-hfvadd 31595 ax-hv0cl 31598 ax-hfvmul 31600 ax-hvmul0 31605 ax-hfi 31674 ax-his1 31677 ax-his2 31678 ax-his3 31679 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-om 7876 df-2nd 8000 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-rdg 8411 df-er 8710 df-en 8967 df-dom 8968 df-sdom 8969 df-pnf 11338 df-mnf 11339 df-xr 11340 df-ltxr 11341 df-le 11342 df-sub 11536 df-neg 11537 df-div 11967 df-nn 12329 df-2 12398 df-cj 15259 df-re 15260 df-im 15261 df-sh 31802 df-oc 31847 |
| This theorem is used by: pjoi0 32312 |
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