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Mirrors > Home > HSE Home > Th. List > hial0 | Structured version Visualization version GIF version |
Description: A vector whose inner product is always zero is zero. (Contributed by NM, 24-Oct-1999.) (New usage is discouraged.) |
Ref | Expression |
---|---|
hial0 | ⊢ (𝐴 ∈ ℋ → (∀𝑥 ∈ ℋ (𝐴 ·ih 𝑥) = 0 ↔ 𝐴 = 0ℎ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq2 7263 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝐴 ·ih 𝑥) = (𝐴 ·ih 𝐴)) | |
2 | 1 | eqeq1d 2740 | . . . 4 ⊢ (𝑥 = 𝐴 → ((𝐴 ·ih 𝑥) = 0 ↔ (𝐴 ·ih 𝐴) = 0)) |
3 | 2 | rspcv 3547 | . . 3 ⊢ (𝐴 ∈ ℋ → (∀𝑥 ∈ ℋ (𝐴 ·ih 𝑥) = 0 → (𝐴 ·ih 𝐴) = 0)) |
4 | his6 29362 | . . 3 ⊢ (𝐴 ∈ ℋ → ((𝐴 ·ih 𝐴) = 0 ↔ 𝐴 = 0ℎ)) | |
5 | 3, 4 | sylibd 238 | . 2 ⊢ (𝐴 ∈ ℋ → (∀𝑥 ∈ ℋ (𝐴 ·ih 𝑥) = 0 → 𝐴 = 0ℎ)) |
6 | oveq1 7262 | . . . . . 6 ⊢ (𝐴 = 0ℎ → (𝐴 ·ih 𝑥) = (0ℎ ·ih 𝑥)) | |
7 | hi01 29359 | . . . . . 6 ⊢ (𝑥 ∈ ℋ → (0ℎ ·ih 𝑥) = 0) | |
8 | 6, 7 | sylan9eq 2799 | . . . . 5 ⊢ ((𝐴 = 0ℎ ∧ 𝑥 ∈ ℋ) → (𝐴 ·ih 𝑥) = 0) |
9 | 8 | ex 412 | . . . 4 ⊢ (𝐴 = 0ℎ → (𝑥 ∈ ℋ → (𝐴 ·ih 𝑥) = 0)) |
10 | 9 | a1i 11 | . . 3 ⊢ (𝐴 ∈ ℋ → (𝐴 = 0ℎ → (𝑥 ∈ ℋ → (𝐴 ·ih 𝑥) = 0))) |
11 | 10 | ralrimdv 3111 | . 2 ⊢ (𝐴 ∈ ℋ → (𝐴 = 0ℎ → ∀𝑥 ∈ ℋ (𝐴 ·ih 𝑥) = 0)) |
12 | 5, 11 | impbid 211 | 1 ⊢ (𝐴 ∈ ℋ → (∀𝑥 ∈ ℋ (𝐴 ·ih 𝑥) = 0 ↔ 𝐴 = 0ℎ)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 = wceq 1539 ∈ wcel 2108 ∀wral 3063 (class class class)co 7255 0cc0 10802 ℋchba 29182 ·ih csp 29185 0ℎc0v 29187 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-hv0cl 29266 ax-hvmul0 29273 ax-hfi 29342 ax-his3 29347 ax-his4 29348 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-po 5494 df-so 5495 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-ltxr 10945 |
This theorem is referenced by: choc1 29590 ho01i 30091 ho02i 30092 |
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