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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 3925 | . . . . . . 7 ⊢ (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ (𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻))) | |
2 | ocin 30136 | . . . . . . . . 9 ⊢ (𝐻 ∈ Sℋ → (𝐻 ∩ (⊥‘𝐻)) = 0ℋ) | |
3 | 2 | eleq2d 2823 | . . . . . . . 8 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) ↔ 𝐴 ∈ 0ℋ)) |
4 | 3 | biimpd 228 | . . . . . . 7 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (𝐻 ∩ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
5 | 1, 4 | biimtrrid 242 | . . . . . 6 ⊢ (𝐻 ∈ Sℋ → ((𝐴 ∈ 𝐻 ∧ 𝐴 ∈ (⊥‘𝐻)) → 𝐴 ∈ 0ℋ)) |
6 | 5 | expcomd 417 | . . . . 5 ⊢ (𝐻 ∈ Sℋ → (𝐴 ∈ (⊥‘𝐻) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ))) |
7 | 6 | imp 407 | . . . 4 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 ∈ 0ℋ)) |
8 | elch0 30094 | . . . 4 ⊢ (𝐴 ∈ 0ℋ ↔ 𝐴 = 0ℎ) | |
9 | 7, 8 | syl6ib 250 | . . 3 ⊢ ((𝐻 ∈ Sℋ ∧ 𝐴 ∈ (⊥‘𝐻)) → (𝐴 ∈ 𝐻 → 𝐴 = 0ℎ)) |
10 | 9 | necon3ad 2955 | . 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 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ≠ wne 2942 ∩ cin 3908 ‘cfv 6494 0ℎc0v 29764 Sℋ csh 29768 ⊥cort 29770 0ℋc0h 29775 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5255 ax-nul 5262 ax-pow 5319 ax-pr 5383 ax-un 7669 ax-resscn 11105 ax-1cn 11106 ax-icn 11107 ax-addcl 11108 ax-addrcl 11109 ax-mulcl 11110 ax-mulrcl 11111 ax-mulcom 11112 ax-addass 11113 ax-mulass 11114 ax-distr 11115 ax-i2m1 11116 ax-1ne0 11117 ax-1rid 11118 ax-rnegex 11119 ax-rrecex 11120 ax-cnre 11121 ax-pre-lttri 11122 ax-pre-lttrn 11123 ax-pre-ltadd 11124 ax-hilex 29839 ax-hfvadd 29840 ax-hv0cl 29843 ax-hfvmul 29845 ax-hvmul0 29850 ax-hfi 29919 ax-his2 29923 ax-his3 29924 ax-his4 29925 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3064 df-rex 3073 df-rab 3407 df-v 3446 df-sbc 3739 df-csb 3855 df-dif 3912 df-un 3914 df-in 3916 df-ss 3926 df-nul 4282 df-if 4486 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4865 df-iun 4955 df-br 5105 df-opab 5167 df-mpt 5188 df-id 5530 df-po 5544 df-so 5545 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6446 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-ov 7357 df-er 8645 df-en 8881 df-dom 8882 df-sdom 8883 df-pnf 11188 df-mnf 11189 df-ltxr 11191 df-sh 30047 df-oc 30092 df-ch0 30093 |
This theorem is referenced by: (None) |
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