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| Mirrors > Home > HSE Home > Th. List > hvsubcan | Structured version Visualization version GIF version | ||
| Description: Cancellation law for vector addition. (Contributed by NM, 18-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvsubcan | ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 −ℎ 𝐵) = (𝐴 −ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hvsubval 31102 | . . . 4 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) | |
| 2 | 1 | 3adant3 1133 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 −ℎ 𝐵) = (𝐴 +ℎ (-1 ·ℎ 𝐵))) |
| 3 | hvsubval 31102 | . . . 4 ⊢ ((𝐴 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 −ℎ 𝐶) = (𝐴 +ℎ (-1 ·ℎ 𝐶))) | |
| 4 | 3 | 3adant2 1132 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 −ℎ 𝐶) = (𝐴 +ℎ (-1 ·ℎ 𝐶))) |
| 5 | 2, 4 | eqeq12d 2753 | . 2 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 −ℎ 𝐵) = (𝐴 −ℎ 𝐶) ↔ (𝐴 +ℎ (-1 ·ℎ 𝐵)) = (𝐴 +ℎ (-1 ·ℎ 𝐶)))) |
| 6 | neg1cn 12135 | . . . 4 ⊢ -1 ∈ ℂ | |
| 7 | hvmulcl 31099 | . . . 4 ⊢ ((-1 ∈ ℂ ∧ 𝐵 ∈ ℋ) → (-1 ·ℎ 𝐵) ∈ ℋ) | |
| 8 | 6, 7 | mpan 691 | . . 3 ⊢ (𝐵 ∈ ℋ → (-1 ·ℎ 𝐵) ∈ ℋ) |
| 9 | hvmulcl 31099 | . . . . 5 ⊢ ((-1 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (-1 ·ℎ 𝐶) ∈ ℋ) | |
| 10 | 6, 9 | mpan 691 | . . . 4 ⊢ (𝐶 ∈ ℋ → (-1 ·ℎ 𝐶) ∈ ℋ) |
| 11 | hvaddcan 31156 | . . . 4 ⊢ ((𝐴 ∈ ℋ ∧ (-1 ·ℎ 𝐵) ∈ ℋ ∧ (-1 ·ℎ 𝐶) ∈ ℋ) → ((𝐴 +ℎ (-1 ·ℎ 𝐵)) = (𝐴 +ℎ (-1 ·ℎ 𝐶)) ↔ (-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶))) | |
| 12 | 10, 11 | syl3an3 1166 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ (-1 ·ℎ 𝐵) ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 +ℎ (-1 ·ℎ 𝐵)) = (𝐴 +ℎ (-1 ·ℎ 𝐶)) ↔ (-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶))) |
| 13 | 8, 12 | syl3an2 1165 | . 2 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 +ℎ (-1 ·ℎ 𝐵)) = (𝐴 +ℎ (-1 ·ℎ 𝐶)) ↔ (-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶))) |
| 14 | neg1ne0 12137 | . . . . 5 ⊢ -1 ≠ 0 | |
| 15 | 6, 14 | pm3.2i 470 | . . . 4 ⊢ (-1 ∈ ℂ ∧ -1 ≠ 0) |
| 16 | hvmulcan 31158 | . . . 4 ⊢ (((-1 ∈ ℂ ∧ -1 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) | |
| 17 | 15, 16 | mp3an1 1451 | . . 3 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| 18 | 17 | 3adant1 1131 | . 2 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((-1 ·ℎ 𝐵) = (-1 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| 19 | 5, 13, 18 | 3bitrd 305 | 1 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 −ℎ 𝐵) = (𝐴 −ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 (class class class)co 7360 ℂcc 11027 0cc0 11029 1c1 11030 -cneg 11369 ℋchba 31005 +ℎ cva 31006 ·ℎ csm 31007 −ℎ cmv 31011 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 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 31086 ax-hvcom 31087 ax-hvass 31088 ax-hv0cl 31089 ax-hvaddid 31090 ax-hfvmul 31091 ax-hvmulid 31092 ax-hvmulass 31093 ax-hvdistr1 31094 ax-hvdistr2 31095 ax-hvmul0 31096 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 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 31057 |
| This theorem is referenced by: hvsubcan2 31161 |
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