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| Mirrors > Home > HSE Home > Th. List > hvsubcan2 | Structured version Visualization version GIF version | ||
| Description: Cancellation law for vector addition. (Contributed by NM, 18-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvsubcan2 | ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 −ℎ 𝐶) = (𝐵 −ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hvsubcl 31106 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (𝐶 −ℎ 𝐴) ∈ ℋ) | |
| 2 | 1 | 3adant3 1138 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐴) ∈ ℋ) |
| 3 | hvsubcl 31106 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐵) ∈ ℋ) | |
| 4 | 3 | 3adant2 1137 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐵) ∈ ℋ) |
| 5 | neg1cn 12135 | . . . . . 6 ⊢ -1 ∈ ℂ | |
| 6 | neg1ne0 12137 | . . . . . 6 ⊢ -1 ≠ 0 | |
| 7 | 5, 6 | pm3.2i 471 | . . . . 5 ⊢ (-1 ∈ ℂ ∧ -1 ≠ 0) |
| 8 | hvmulcan 31161 | . . . . 5 ⊢ (((-1 ∈ ℂ ∧ -1 ≠ 0) ∧ (𝐶 −ℎ 𝐴) ∈ ℋ ∧ (𝐶 −ℎ 𝐵) ∈ ℋ) → ((-1 ·ℎ (𝐶 −ℎ 𝐴)) = (-1 ·ℎ (𝐶 −ℎ 𝐵)) ↔ (𝐶 −ℎ 𝐴) = (𝐶 −ℎ 𝐵))) | |
| 9 | 7, 8 | mp3an1 1456 | . . . 4 ⊢ (((𝐶 −ℎ 𝐴) ∈ ℋ ∧ (𝐶 −ℎ 𝐵) ∈ ℋ) → ((-1 ·ℎ (𝐶 −ℎ 𝐴)) = (-1 ·ℎ (𝐶 −ℎ 𝐵)) ↔ (𝐶 −ℎ 𝐴) = (𝐶 −ℎ 𝐵))) |
| 10 | 2, 4, 9 | syl2anc 590 | . . 3 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((-1 ·ℎ (𝐶 −ℎ 𝐴)) = (-1 ·ℎ (𝐶 −ℎ 𝐵)) ↔ (𝐶 −ℎ 𝐴) = (𝐶 −ℎ 𝐵))) |
| 11 | hvnegdi 31156 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐴)) = (𝐴 −ℎ 𝐶)) | |
| 12 | 11 | 3adant3 1138 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐴)) = (𝐴 −ℎ 𝐶)) |
| 13 | hvnegdi 31156 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐵)) = (𝐵 −ℎ 𝐶)) | |
| 14 | 13 | 3adant2 1137 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐵)) = (𝐵 −ℎ 𝐶)) |
| 15 | 12, 14 | eqeq12d 2755 | . . 3 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((-1 ·ℎ (𝐶 −ℎ 𝐴)) = (-1 ·ℎ (𝐶 −ℎ 𝐵)) ↔ (𝐴 −ℎ 𝐶) = (𝐵 −ℎ 𝐶))) |
| 16 | hvsubcan 31163 | . . 3 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((𝐶 −ℎ 𝐴) = (𝐶 −ℎ 𝐵) ↔ 𝐴 = 𝐵)) | |
| 17 | 10, 15, 16 | 3bitr3d 310 | . 2 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((𝐴 −ℎ 𝐶) = (𝐵 −ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| 18 | 17 | 3coml 1133 | 1 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 −ℎ 𝐶) = (𝐵 −ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 207 ∧ wa 396 ∧ w3a 1092 = wceq 1547 ∈ wcel 2119 ≠ wne 2934 (class class class)co 7356 ℂcc 11027 0cc0 11029 1c1 11030 -cneg 11369 ℋchba 31008 ·ℎ csm 31010 −ℎ cmv 31014 |
| 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 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-hfvadd 31089 ax-hvcom 31090 ax-hvass 31091 ax-hv0cl 31092 ax-hvaddid 31093 ax-hfvmul 31094 ax-hvmulid 31095 ax-hvmulass 31096 ax-hvdistr1 31097 ax-hvdistr2 31098 ax-hvmul0 31099 |
| 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-rmo 3344 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 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-po 5526 df-so 5527 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-er 8633 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-hvsub 31060 |
| This theorem is referenced by: hvaddsub4 31167 |
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