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Theorem lmod0vid 20070
Description: Identity equivalent to the value of the zero vector. Provides a convenient way to compute the value. (Contributed by NM, 9-Mar-2014.) (Revised by Mario Carneiro, 19-Jun-2014.)
Hypotheses
Ref Expression
0vlid.v 𝑉 = (Base‘𝑊)
0vlid.a + = (+g𝑊)
0vlid.z 0 = (0g𝑊)
Assertion
Ref Expression
lmod0vid ((𝑊 ∈ LMod ∧ 𝑋𝑉) → ((𝑋 + 𝑋) = 𝑋0 = 𝑋))

Proof of Theorem lmod0vid
StepHypRef Expression
1 lmodgrp 20045 . 2 (𝑊 ∈ LMod → 𝑊 ∈ Grp)
2 0vlid.v . . 3 𝑉 = (Base‘𝑊)
3 0vlid.a . . 3 + = (+g𝑊)
4 0vlid.z . . 3 0 = (0g𝑊)
52, 3, 4grpid 18530 . 2 ((𝑊 ∈ Grp ∧ 𝑋𝑉) → ((𝑋 + 𝑋) = 𝑋0 = 𝑋))
61, 5sylan 579 1 ((𝑊 ∈ LMod ∧ 𝑋𝑉) → ((𝑋 + 𝑋) = 𝑋0 = 𝑋))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395   = wceq 1539  wcel 2108  cfv 6418  (class class class)co 7255  Basecbs 16840  +gcplusg 16888  0gc0g 17067  Grpcgrp 18492  LModclmod 20038
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-iota 6376  df-fun 6420  df-fv 6426  df-riota 7212  df-ov 7258  df-0g 17069  df-mgm 18241  df-sgrp 18290  df-mnd 18301  df-grp 18495  df-lmod 20040
This theorem is referenced by:  lmod0vs  20071  dva0g  38968  dvh0g  39052
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