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| Mirrors > Home > HSE Home > Th. List > ocnel | Structured version Visualization version GIF version | ||
| Description: A nonzero vector in the complement of a subspace does not belong to the subspace. (Contributed by NM, 10-Apr-2006.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ocnel | ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻) ∧ 𝐴 ≠ 0ℎ) → ¬ 𝐴 ∈ 𝐻) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elin 3919 | . . . . . . 7 ⊢ (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ (𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) | |
| 2 | ocin 31240 | . . . . . . . . 9 ⊢ (𝐻 ∈ Sℋ → (𝐻 ∩ (⊥‘𝐻)) = 0ℋ) | |
| 3 | 2 | eleq2d 2814 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ 𝐴 ∈ 0ℋ)) |
| 4 | 3 | biimpd 229 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
| 5 | 1, 4 | biimtrrid 243 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
| 6 | 5 | expcomd 416 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (⊥‘𝐻) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ))) |
| 7 | 6 | imp 406 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ)) |
| 8 | elch0 31198 | . . . 4 ⊢ (𝐴 ∈ 0ℋ ↔ 𝐴 = 0ℎ) | |
| 9 | 7, 8 | imbitrdi 251 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 = 0ℎ)) |
| 10 | 9 | necon3ad 2938 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ≠ 0ℎ → ¬ 𝐴 ∈ 𝐻)) |
| 11 | 10 | 3impia 1117 | 1 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻) ∧ 𝐴 ≠ 0ℎ) → ¬ 𝐴 ∈ 𝐻) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ≠ wne 2925 ∩ cin 3902 ‘cfv 6482 0ℎc0v 30868 Sℋ csh 30872 ⊥cort 30874 0ℋc0h 30879 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-hilex 30943 ax-hfvadd 30944 ax-hv0cl 30947 ax-hfvmul 30949 ax-hvmul0 30954 ax-hfi 31023 ax-his2 31027 ax-his3 31028 ax-his4 31029 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-id 5514 df-po 5527 df-so 5528 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-ov 7352 df-er 8625 df-en 8873 df-dom 8874 df-sdom 8875 df-pnf 11151 df-mnf 11152 df-ltxr 11154 df-sh 31151 df-oc 31196 df-ch0 31197 |
| This theorem is referenced by: (None) |
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