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Theorem sub2vec 14815
Description: Definition of the subtraction of two vectors.
Hypotheses
Ref Expression
vwit.1 |- 0w = (Id` +w )
vwit.2 |- +w = (1st` (2nd` R))
vwit.3 |- -w = ( /g ` +w )
vwit.4 |- W = ran +w
vwit.5 |- ~w = (inv` +w )
Assertion
Ref Expression
sub2vec |- ((R e. Vec /\ (V1 e. W /\ V2 e. W)) -> (V1-w V2) = (V1+w (~w ` V2)))

Proof of Theorem sub2vec
StepHypRef Expression
1 vwit.2 . . . . 5 |- +w = (1st` (2nd` R))
21vecax1 14796 . . . 4 |- (R e. Vec -> +w e. Abel)
3 ablgrp 9410 . . . 4 |- (+w e. Abel -> +w e. Grp)
42, 3syl 12 . . 3 |- (R e. Vec -> +w e. Grp)
54adantr 425 . 2 |- ((R e. Vec /\ (V1 e. W /\ V2 e. W)) -> +w e. Grp)
6 simprl 450 . 2 |- ((R e. Vec /\ (V1 e. W /\ V2 e. W)) -> V1 e. W)
7 simprr 451 . 2 |- ((R e. Vec /\ (V1 e. W /\ V2 e. W)) -> V2 e. W)
8 vwit.4 . . 3 |- W = ran +w
9 vwit.5 . . 3 |- ~w = (inv` +w )
10 vwit.3 . . 3 |- -w = ( /g ` +w )
118, 9, 10grpdivval 9367 . 2 |- ((+w e. Grp /\ V1 e. W /\ V2 e. W) -> (V1-w V2) = (V1+w (~w ` V2)))
125, 6, 7, 11syl111anc 1100 1 |- ((R e. Vec /\ (V1 e. W /\ V2 e. W)) -> (V1-w V2) = (V1+w (~w ` V2)))
Colors of variables: wff set class
Syntax hints:   -> wi 3   /\ wa 240   = wceq 1298   e. wcel 1300  ran crn 3987  ` cfv 3998  (class class class)co 4884  1stc1st 5018  2ndc2nd 5019  Grpcgr 9311  Idcgi 9312  invcgn 9313   /g cgs 9314  Abelcabl 9407  Veccvec 14792
This theorem is referenced by:  dblsubvec 14817  mvecrtol2 14820  mulinvsca 14823
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 1304  ax-gen 1305  ax-8 1306  ax-9 1307  ax-10 1308  ax-11 1309  ax-12 1310  ax-13 1311  ax-14 1312  ax-17 1317  ax-4 1319  ax-5o 1321  ax-6o 1324  ax-9o 1481  ax-10o 1500  ax-16 1580  ax-11o 1588  ax-ext 1865  ax-rep 3428  ax-sep 3438  ax-nul 3445  ax-pow 3481  ax-pr 3524  ax-un 3790
This theorem depends on definitions:  df-bi 164  df-or 241  df-an 242  df-3an 860  df-ex 1327  df-sb 1536  df-eu 1775  df-mo 1776  df-clab 1872  df-cleq 1877  df-clel 1880  df-ne 2019  df-ral 2109  df-rex 2110  df-rab 2112  df-v 2294  df-sbc 2454  df-csb 2541  df-dif 2597  df-un 2600  df-in 2603  df-ss 2605  df-nul 2876  df-pw 3035  df-sn 3049  df-pr 3050  df-op 3053  df-uni 3178  df-br 3339  df-opab 3396  df-id 3586  df-xp 4000  df-rel 4001  df-cnv 4002  df-co 4003  df-dm 4004  df-rn 4005  df-res 4006  df-ima 4007  df-fun 4008  df-fn 4009  df-f 4010  df-fv 4014  df-opr 4886  df-oprab 4887  df-1st 5020  df-2nd 5021  df-gdiv 9319  df-abl 9408  df-vec 14793
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