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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 31309 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (𝐶 −ℎ 𝐴) ∈ ℋ) | |
| 2 | 1 | 3adant3 1148 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐴) ∈ ℋ) |
| 3 | hvsubcl 31309 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐵) ∈ ℋ) | |
| 4 | 3 | 3adant2 1147 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐶 −ℎ 𝐵) ∈ ℋ) |
| 5 | neg1cn 12202 | . . . . . 6 ⊢ -1 ∈ ℂ | |
| 6 | neg1ne0 12204 | . . . . . 6 ⊢ -1 ≠ 0 | |
| 7 | 5, 6 | pm3.2i 475 | . . . . 5 ⊢ (-1 ∈ ℂ ∧ -1 ≠ 0) |
| 8 | hvmulcan 31364 | . . . . 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 1474 | . . . 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 595 | . . 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 31359 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐴)) = (𝐴 −ℎ 𝐶)) | |
| 12 | 11 | 3adant3 1148 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐴)) = (𝐴 −ℎ 𝐶)) |
| 13 | hvnegdi 31359 | . . . . 5 ⊢ ((𝐶 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐵)) = (𝐵 −ℎ 𝐶)) | |
| 14 | 13 | 3adant2 1147 | . . . 4 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ (𝐶 −ℎ 𝐵)) = (𝐵 −ℎ 𝐶)) |
| 15 | 12, 14 | eqeq12d 2785 | . . 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 31366 | . . 3 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((𝐶 −ℎ 𝐴) = (𝐶 −ℎ 𝐵) ↔ 𝐴 = 𝐵)) | |
| 17 | 10, 15, 16 | 3bitr3d 312 | . 2 ⊢ ((𝐶 ∈ ℋ ∧ 𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → ((𝐴 −ℎ 𝐶) = (𝐵 −ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| 18 | 17 | 3coml 1143 | 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 209 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 ≠ wne 2964 (class class class)co 7411 ℂcc 11097 0cc0 11099 1c1 11100 -cneg 11441 ℋchba 31211 ·ℎ csm 31213 −ℎ cmv 31217 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-resscn 11156 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-mulrcl 11162 ax-mulcom 11163 ax-addass 11164 ax-mulass 11165 ax-distr 11166 ax-i2m1 11167 ax-1ne0 11168 ax-1rid 11169 ax-rnegex 11170 ax-rrecex 11171 ax-cnre 11172 ax-pre-lttri 11173 ax-pre-lttrn 11174 ax-pre-ltadd 11175 ax-pre-mulgt0 11176 ax-hfvadd 31292 ax-hvcom 31293 ax-hvass 31294 ax-hv0cl 31295 ax-hvaddid 31296 ax-hfvmul 31297 ax-hvmulid 31298 ax-hvmulass 31299 ax-hvdistr1 31300 ax-hvdistr2 31301 ax-hvmul0 31302 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-po 5570 df-so 5571 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-er 8693 df-en 8943 df-dom 8944 df-sdom 8945 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-sub 11442 df-neg 11443 df-div 11871 df-hvsub 31263 |
| This theorem is referenced by: hvaddsub4 31370 |
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