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| Mirrors > Home > HSE Home > Th. List > hvsubeq0i | Structured version Visualization version GIF version | ||
| Description: If the difference between two vectors is zero, they are equal. (Contributed by NM, 18-Aug-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvnegdi.1 | ⊢ 𝐴 ∈ ℋ |
| hvnegdi.2 | ⊢ 𝐵 ∈ ℋ |
| Ref | Expression |
|---|---|
| hvsubeq0i | ⊢ ((𝐴 −ℎ 𝐵) = 0ℎ ↔ 𝐴 = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hvnegdi.1 | . . . . . 6 ⊢ 𝐴 ∈ ℋ | |
| 2 | hvnegdi.2 | . . . . . 6 ⊢ 𝐵 ∈ ℋ | |
| 3 | 1, 2 | hvsubvali 31110 | . . . . 5 ⊢ (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵)) |
| 4 | 3 | eqeq1i 2744 | . . . 4 ⊢ ((𝐴 −ℎ 𝐵) = 0ℎ ↔ (𝐴 +ℎ (-1 ·ℎ 𝐵)) = 0ℎ) |
| 5 | oveq1 7364 | . . . 4 ⊢ ((𝐴 +ℎ (-1 ·ℎ 𝐵)) = 0ℎ → ((𝐴 +ℎ (-1 ·ℎ 𝐵)) +ℎ 𝐵) = (0ℎ +ℎ 𝐵)) | |
| 6 | 4, 5 | sylbi 218 | . . 3 ⊢ ((𝐴 −ℎ 𝐵) = 0ℎ → ((𝐴 +ℎ (-1 ·ℎ 𝐵)) +ℎ 𝐵) = (0ℎ +ℎ 𝐵)) |
| 7 | neg1cn 12136 | . . . . . 6 ⊢ -1 ∈ ℂ | |
| 8 | 7, 2 | hvmulcli 31104 | . . . . 5 ⊢ (-1 ·ℎ 𝐵) ∈ ℋ |
| 9 | 1, 8, 2 | hvadd32i 31144 | . . . 4 ⊢ ((𝐴 +ℎ (-1 ·ℎ 𝐵)) +ℎ 𝐵) = ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐵)) |
| 10 | 1, 2, 8 | hvassi 31143 | . . . . 5 ⊢ ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐵)) = (𝐴 +ℎ (𝐵 +ℎ (-1 ·ℎ 𝐵))) |
| 11 | 2 | hvnegidi 31120 | . . . . . . 7 ⊢ (𝐵 +ℎ (-1 ·ℎ 𝐵)) = 0ℎ |
| 12 | 11 | oveq2i 7368 | . . . . . 6 ⊢ (𝐴 +ℎ (𝐵 +ℎ (-1 ·ℎ 𝐵))) = (𝐴 +ℎ 0ℎ) |
| 13 | ax-hvaddid 31094 | . . . . . . 7 ⊢ (𝐴 ∈ ℋ → (𝐴 +ℎ 0ℎ) = 𝐴) | |
| 14 | 1, 13 | ax-mp 5 | . . . . . 6 ⊢ (𝐴 +ℎ 0ℎ) = 𝐴 |
| 15 | 12, 14 | eqtri 2762 | . . . . 5 ⊢ (𝐴 +ℎ (𝐵 +ℎ (-1 ·ℎ 𝐵))) = 𝐴 |
| 16 | 10, 15 | eqtri 2762 | . . . 4 ⊢ ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐵)) = 𝐴 |
| 17 | 9, 16 | eqtri 2762 | . . 3 ⊢ ((𝐴 +ℎ (-1 ·ℎ 𝐵)) +ℎ 𝐵) = 𝐴 |
| 18 | 2 | hvaddlidi 31119 | . . 3 ⊢ (0ℎ +ℎ 𝐵) = 𝐵 |
| 19 | 6, 17, 18 | 3eqtr3g 2797 | . 2 ⊢ ((𝐴 −ℎ 𝐵) = 0ℎ → 𝐴 = 𝐵) |
| 20 | oveq1 7364 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 −ℎ 𝐵) = (𝐵 −ℎ 𝐵)) | |
| 21 | hvsubid 31116 | . . . 4 ⊢ (𝐵 ∈ ℋ → (𝐵 −ℎ 𝐵) = 0ℎ) | |
| 22 | 2, 21 | ax-mp 5 | . . 3 ⊢ (𝐵 −ℎ 𝐵) = 0ℎ |
| 23 | 20, 22 | eqtrdi 2790 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 −ℎ 𝐵) = 0ℎ) |
| 24 | 19, 23 | impbii 210 | 1 ⊢ ((𝐴 −ℎ 𝐵) = 0ℎ ↔ 𝐴 = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 207 = wceq 1547 ∈ wcel 2119 (class class class)co 7357 1c1 11031 -cneg 11370 ℋchba 31009 +ℎ cva 31010 ·ℎ csm 31011 0ℎc0v 31014 −ℎ cmv 31015 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5219 ax-nul 5229 ax-pow 5295 ax-pr 5363 ax-un 7679 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-hvcom 31091 ax-hvass 31092 ax-hv0cl 31093 ax-hvaddid 31094 ax-hfvmul 31095 ax-hvmulid 31096 ax-hvdistr2 31099 ax-hvmul0 31100 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4263 df-if 4456 df-pw 4532 df-sn 4557 df-pr 4559 df-op 4563 df-uni 4840 df-iun 4924 df-br 5074 df-opab 5136 df-mpt 5155 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 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7314 df-ov 7360 df-oprab 7361 df-mpo 7362 df-er 8634 df-en 8885 df-dom 8886 df-sdom 8887 df-pnf 11173 df-mnf 11174 df-ltxr 11176 df-sub 11371 df-neg 11372 df-hvsub 31061 |
| This theorem is referenced by: hvsubeq0 31158 bcseqi 31210 normsub0i 31225 pjss2i 31770 |
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