Users' Mathboxes Mathbox for Alexander van der Vekens < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  lindslinindimp2lem1 Structured version   Visualization version   GIF version

Theorem lindslinindimp2lem1 48304
Description: Lemma 1 for lindslinindsimp2 48309. (Contributed by AV, 25-Apr-2019.)
Hypotheses
Ref Expression
lindslinind.r 𝑅 = (Scalar‘𝑀)
lindslinind.b 𝐵 = (Base‘𝑅)
lindslinind.0 0 = (0g𝑅)
lindslinind.z 𝑍 = (0g𝑀)
lindslinind.y 𝑌 = ((invg𝑅)‘(𝑓𝑥))
lindslinind.g 𝐺 = (𝑓 ↾ (𝑆 ∖ {𝑥}))
Assertion
Ref Expression
lindslinindimp2lem1 (((𝑆𝑉𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥𝑆𝑓 ∈ (𝐵m 𝑆))) → 𝑌𝐵)
Distinct variable groups:   𝐵,𝑓   𝑓,𝑀   𝑅,𝑓,𝑥   𝑆,𝑓,𝑥   𝑓,𝑍   0 ,𝑓,𝑥
Allowed substitution hints:   𝐵(𝑥)   𝐺(𝑥,𝑓)   𝑀(𝑥)   𝑉(𝑥,𝑓)   𝑌(𝑥,𝑓)   𝑍(𝑥)

Proof of Theorem lindslinindimp2lem1
StepHypRef Expression
1 lindslinind.y . 2 𝑌 = ((invg𝑅)‘(𝑓𝑥))
2 lindslinind.r . . . . 5 𝑅 = (Scalar‘𝑀)
32lmodfgrp 20884 . . . 4 (𝑀 ∈ LMod → 𝑅 ∈ Grp)
43adantl 481 . . 3 ((𝑆𝑉𝑀 ∈ LMod) → 𝑅 ∈ Grp)
5 elmapi 8888 . . . . . 6 (𝑓 ∈ (𝐵m 𝑆) → 𝑓:𝑆𝐵)
6 ffvelcdm 7101 . . . . . . . 8 ((𝑓:𝑆𝐵𝑥𝑆) → (𝑓𝑥) ∈ 𝐵)
76a1d 25 . . . . . . 7 ((𝑓:𝑆𝐵𝑥𝑆) → (𝑆 ⊆ (Base‘𝑀) → (𝑓𝑥) ∈ 𝐵))
87ex 412 . . . . . 6 (𝑓:𝑆𝐵 → (𝑥𝑆 → (𝑆 ⊆ (Base‘𝑀) → (𝑓𝑥) ∈ 𝐵)))
95, 8syl 17 . . . . 5 (𝑓 ∈ (𝐵m 𝑆) → (𝑥𝑆 → (𝑆 ⊆ (Base‘𝑀) → (𝑓𝑥) ∈ 𝐵)))
109com13 88 . . . 4 (𝑆 ⊆ (Base‘𝑀) → (𝑥𝑆 → (𝑓 ∈ (𝐵m 𝑆) → (𝑓𝑥) ∈ 𝐵)))
11103imp 1110 . . 3 ((𝑆 ⊆ (Base‘𝑀) ∧ 𝑥𝑆𝑓 ∈ (𝐵m 𝑆)) → (𝑓𝑥) ∈ 𝐵)
12 lindslinind.b . . . 4 𝐵 = (Base‘𝑅)
13 eqid 2735 . . . 4 (invg𝑅) = (invg𝑅)
1412, 13grpinvcl 19018 . . 3 ((𝑅 ∈ Grp ∧ (𝑓𝑥) ∈ 𝐵) → ((invg𝑅)‘(𝑓𝑥)) ∈ 𝐵)
154, 11, 14syl2an 596 . 2 (((𝑆𝑉𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥𝑆𝑓 ∈ (𝐵m 𝑆))) → ((invg𝑅)‘(𝑓𝑥)) ∈ 𝐵)
161, 15eqeltrid 2843 1 (((𝑆𝑉𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥𝑆𝑓 ∈ (𝐵m 𝑆))) → 𝑌𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1086   = wceq 1537  wcel 2106  cdif 3960  wss 3963  {csn 4631  cres 5691  wf 6559  cfv 6563  (class class class)co 7431  m cmap 8865  Basecbs 17245  Scalarcsca 17301  0gc0g 17486  Grpcgrp 18964  invgcminusg 18965  LModclmod 20875
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 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706  ax-sep 5302  ax-nul 5312  ax-pow 5371  ax-pr 5438  ax-un 7754
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1540  df-fal 1550  df-ex 1777  df-nf 1781  df-sb 2063  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ne 2939  df-ral 3060  df-rex 3069  df-rmo 3378  df-reu 3379  df-rab 3434  df-v 3480  df-sbc 3792  df-csb 3909  df-dif 3966  df-un 3968  df-in 3970  df-ss 3980  df-nul 4340  df-if 4532  df-pw 4607  df-sn 4632  df-pr 4634  df-op 4638  df-uni 4913  df-iun 4998  df-br 5149  df-opab 5211  df-mpt 5232  df-id 5583  df-xp 5695  df-rel 5696  df-cnv 5697  df-co 5698  df-dm 5699  df-rn 5700  df-res 5701  df-ima 5702  df-iota 6516  df-fun 6565  df-fn 6566  df-f 6567  df-fv 6571  df-riota 7388  df-ov 7434  df-oprab 7435  df-mpo 7436  df-1st 8013  df-2nd 8014  df-map 8867  df-0g 17488  df-mgm 18666  df-sgrp 18745  df-mnd 18761  df-grp 18967  df-minusg 18968  df-ring 20253  df-lmod 20877
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator