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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 3917 | . . . . . . 7 ⊢ (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ (𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) | |
| 2 | ocin 31371 | . . . . . . . . 9 ⊢ (𝐻 ∈ Sℋ → (𝐻 ∩ (⊥‘𝐻)) = 0ℋ) | |
| 3 | 2 | eleq2d 2822 | . . . . . . . 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 31329 | . . . 4 ⊢ (𝐴 ∈ 0ℋ ↔ 𝐴 = 0ℎ) | |
| 9 | 7, 8 | imbitrdi 251 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 = 0ℎ)) |
| 10 | 9 | necon3ad 2945 | . 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 1541 ∈ wcel 2113 ≠ wne 2932 ∩ cin 3900 ‘cfv 6492 0ℎc0v 30999 Sℋ csh 31003 ⊥cort 31005 0ℋc0h 31010 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-hilex 31074 ax-hfvadd 31075 ax-hv0cl 31078 ax-hfvmul 31080 ax-hvmul0 31085 ax-hfi 31154 ax-his2 31158 ax-his3 31159 ax-his4 31160 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 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 3061 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-po 5532 df-so 5533 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-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7361 df-er 8635 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11168 df-mnf 11169 df-ltxr 11171 df-sh 31282 df-oc 31327 df-ch0 31328 |
| This theorem is referenced by: (None) |
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