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Mirrors > Home > MPE Home > Th. List > nvnegneg | Structured version Visualization version GIF version |
Description: Double negative of a vector. (Contributed by NM, 4-Dec-2007.) (New usage is discouraged.) |
Ref | Expression |
---|---|
nvnegneg.1 | ⊢ 𝑋 = (BaseSet‘𝑈) |
nvnegneg.4 | ⊢ 𝑆 = ( ·𝑠OLD ‘𝑈) |
Ref | Expression |
---|---|
nvnegneg | ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (-1𝑆(-1𝑆𝐴)) = 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | neg1cn 11745 | . . . 4 ⊢ -1 ∈ ℂ | |
2 | nvnegneg.1 | . . . . 5 ⊢ 𝑋 = (BaseSet‘𝑈) | |
3 | nvnegneg.4 | . . . . 5 ⊢ 𝑆 = ( ·𝑠OLD ‘𝑈) | |
4 | 2, 3 | nvscl 28397 | . . . 4 ⊢ ((𝑈 ∈ NrmCVec ∧ -1 ∈ ℂ ∧ 𝐴 ∈ 𝑋) → (-1𝑆𝐴) ∈ 𝑋) |
5 | 1, 4 | mp3an2 1445 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (-1𝑆𝐴) ∈ 𝑋) |
6 | eqid 2821 | . . . 4 ⊢ ( +𝑣 ‘𝑈) = ( +𝑣 ‘𝑈) | |
7 | eqid 2821 | . . . 4 ⊢ (inv‘( +𝑣 ‘𝑈)) = (inv‘( +𝑣 ‘𝑈)) | |
8 | 2, 6, 3, 7 | nvinv 28410 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ (-1𝑆𝐴) ∈ 𝑋) → (-1𝑆(-1𝑆𝐴)) = ((inv‘( +𝑣 ‘𝑈))‘(-1𝑆𝐴))) |
9 | 5, 8 | syldan 593 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (-1𝑆(-1𝑆𝐴)) = ((inv‘( +𝑣 ‘𝑈))‘(-1𝑆𝐴))) |
10 | 2, 6, 3, 7 | nvinv 28410 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (-1𝑆𝐴) = ((inv‘( +𝑣 ‘𝑈))‘𝐴)) |
11 | 10 | fveq2d 6668 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → ((inv‘( +𝑣 ‘𝑈))‘(-1𝑆𝐴)) = ((inv‘( +𝑣 ‘𝑈))‘((inv‘( +𝑣 ‘𝑈))‘𝐴))) |
12 | 6 | nvgrp 28388 | . . 3 ⊢ (𝑈 ∈ NrmCVec → ( +𝑣 ‘𝑈) ∈ GrpOp) |
13 | 2, 6 | bafval 28375 | . . . 4 ⊢ 𝑋 = ran ( +𝑣 ‘𝑈) |
14 | 13, 7 | grpo2inv 28302 | . . 3 ⊢ ((( +𝑣 ‘𝑈) ∈ GrpOp ∧ 𝐴 ∈ 𝑋) → ((inv‘( +𝑣 ‘𝑈))‘((inv‘( +𝑣 ‘𝑈))‘𝐴)) = 𝐴) |
15 | 12, 14 | sylan 582 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → ((inv‘( +𝑣 ‘𝑈))‘((inv‘( +𝑣 ‘𝑈))‘𝐴)) = 𝐴) |
16 | 9, 11, 15 | 3eqtrd 2860 | 1 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (-1𝑆(-1𝑆𝐴)) = 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1533 ∈ wcel 2110 ‘cfv 6349 (class class class)co 7150 ℂcc 10529 1c1 10532 -cneg 10865 GrpOpcgr 28260 invcgn 28262 NrmCVeccnv 28355 +𝑣 cpv 28356 BaseSetcba 28357 ·𝑠OLD cns 28358 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-rep 5182 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-po 5468 df-so 5469 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-1st 7683 df-2nd 7684 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-ltxr 10674 df-sub 10866 df-neg 10867 df-grpo 28264 df-gid 28265 df-ginv 28266 df-ablo 28316 df-vc 28330 df-nv 28363 df-va 28366 df-ba 28367 df-sm 28368 df-0v 28369 df-nmcv 28371 |
This theorem is referenced by: nvdif 28437 |
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