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Mirrors > Home > HSE Home > Th. List > hvsubcan2i | Structured version Visualization version GIF version |
Description: Vector cancellation law. (Contributed by NM, 3-Sep-1999.) (New usage is discouraged.) |
Ref | Expression |
---|---|
hvnegdi.1 | โข ๐ด โ โ |
hvnegdi.2 | โข ๐ต โ โ |
Ref | Expression |
---|---|
hvsubcan2i | โข ((๐ด +โ ๐ต) +โ (๐ด โโ ๐ต)) = (2 ยทโ ๐ด) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hvnegdi.1 | . . . 4 โข ๐ด โ โ | |
2 | hvnegdi.2 | . . . 4 โข ๐ต โ โ | |
3 | 1, 2 | hvsubvali 30261 | . . 3 โข (๐ด โโ ๐ต) = (๐ด +โ (-1 ยทโ ๐ต)) |
4 | 3 | oveq2i 7417 | . 2 โข ((๐ด +โ ๐ต) +โ (๐ด โโ ๐ต)) = ((๐ด +โ ๐ต) +โ (๐ด +โ (-1 ยทโ ๐ต))) |
5 | neg1cn 12323 | . . . . . 6 โข -1 โ โ | |
6 | 5, 2 | hvmulcli 30255 | . . . . 5 โข (-1 ยทโ ๐ต) โ โ |
7 | 1, 2, 1, 6 | hvadd4i 30299 | . . . 4 โข ((๐ด +โ ๐ต) +โ (๐ด +โ (-1 ยทโ ๐ต))) = ((๐ด +โ ๐ด) +โ (๐ต +โ (-1 ยทโ ๐ต))) |
8 | hv2times 30302 | . . . . . . 7 โข (๐ด โ โ โ (2 ยทโ ๐ด) = (๐ด +โ ๐ด)) | |
9 | 1, 8 | ax-mp 5 | . . . . . 6 โข (2 ยทโ ๐ด) = (๐ด +โ ๐ด) |
10 | 9 | eqcomi 2742 | . . . . 5 โข (๐ด +โ ๐ด) = (2 ยทโ ๐ด) |
11 | 2 | hvnegidi 30271 | . . . . 5 โข (๐ต +โ (-1 ยทโ ๐ต)) = 0โ |
12 | 10, 11 | oveq12i 7418 | . . . 4 โข ((๐ด +โ ๐ด) +โ (๐ต +โ (-1 ยทโ ๐ต))) = ((2 ยทโ ๐ด) +โ 0โ) |
13 | 7, 12 | eqtri 2761 | . . 3 โข ((๐ด +โ ๐ต) +โ (๐ด +โ (-1 ยทโ ๐ต))) = ((2 ยทโ ๐ด) +โ 0โ) |
14 | 2cn 12284 | . . . . 5 โข 2 โ โ | |
15 | 14, 1 | hvmulcli 30255 | . . . 4 โข (2 ยทโ ๐ด) โ โ |
16 | ax-hvaddid 30245 | . . . 4 โข ((2 ยทโ ๐ด) โ โ โ ((2 ยทโ ๐ด) +โ 0โ) = (2 ยทโ ๐ด)) | |
17 | 15, 16 | ax-mp 5 | . . 3 โข ((2 ยทโ ๐ด) +โ 0โ) = (2 ยทโ ๐ด) |
18 | 13, 17 | eqtri 2761 | . 2 โข ((๐ด +โ ๐ต) +โ (๐ด +โ (-1 ยทโ ๐ต))) = (2 ยทโ ๐ด) |
19 | 4, 18 | eqtri 2761 | 1 โข ((๐ด +โ ๐ต) +โ (๐ด โโ ๐ต)) = (2 ยทโ ๐ด) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1542 โ wcel 2107 (class class class)co 7406 1c1 11108 -cneg 11442 2c2 12264 โchba 30160 +โ cva 30161 ยทโ csm 30162 0โc0v 30165 โโ cmv 30166 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7722 ax-resscn 11164 ax-1cn 11165 ax-icn 11166 ax-addcl 11167 ax-addrcl 11168 ax-mulcl 11169 ax-mulrcl 11170 ax-mulcom 11171 ax-addass 11172 ax-mulass 11173 ax-distr 11174 ax-i2m1 11175 ax-1ne0 11176 ax-1rid 11177 ax-rnegex 11178 ax-rrecex 11179 ax-cnre 11180 ax-pre-lttri 11181 ax-pre-lttrn 11182 ax-pre-ltadd 11183 ax-hfvadd 30241 ax-hvcom 30242 ax-hvass 30243 ax-hvaddid 30245 ax-hfvmul 30246 ax-hvmulid 30247 ax-hvdistr1 30249 ax-hvdistr2 30250 ax-hvmul0 30251 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-id 5574 df-po 5588 df-so 5589 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7362 df-ov 7409 df-oprab 7410 df-mpo 7411 df-er 8700 df-en 8937 df-dom 8938 df-sdom 8939 df-pnf 11247 df-mnf 11248 df-ltxr 11250 df-sub 11443 df-neg 11444 df-2 12272 df-hvsub 30212 |
This theorem is referenced by: normpar2i 30397 |
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