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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 3758 | . . . . . . 7 ⊢ (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ (𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) | |
2 | ocin 27539 | . . . . . . . . 9 ⊢ (𝐻 ∈ Sℋ → (𝐻 ∩ (⊥‘𝐻)) = 0ℋ) | |
3 | 2 | eleq2d 2673 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ 𝐴 ∈ 0ℋ)) |
4 | 3 | biimpd 218 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
5 | 1, 4 | syl5bir 232 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
6 | 5 | expcomd 453 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (⊥‘𝐻) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ))) |
7 | 6 | imp 444 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ)) |
8 | elch0 27495 | . . . 4 ⊢ (𝐴 ∈ 0ℋ ↔ 𝐴 = 0ℎ) | |
9 | 7, 8 | syl6ib 240 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 = 0ℎ)) |
10 | 9 | necon3ad 2795 | . 2 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ≠ 0ℎ → ¬ 𝐴 ∈ 𝐻)) |
11 | 10 | 3impia 1253 | 1 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻) ∧ 𝐴 ≠ 0ℎ) → ¬ 𝐴 ∈ 𝐻) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ∩ cin 3539 ‘cfv 5804 0ℎc0v 27165 Sℋ csh 27169 ⊥cort 27171 0ℋc0h 27176 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-hilex 27240 ax-hfvadd 27241 ax-hv0cl 27244 ax-hfvmul 27246 ax-hvmul0 27251 ax-hfi 27320 ax-his2 27324 ax-his3 27325 ax-his4 27326 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-po 4959 df-so 4960 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-ov 6552 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-ltxr 9958 df-sh 27448 df-oc 27493 df-ch0 27494 |
This theorem is referenced by: (None) |
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