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Theorem lspsnel3 20253
Description: A member of the span of the singleton of a vector is a member of a subspace containing the vector. (elspansn3 29934 analog.) (Contributed by NM, 4-Jul-2014.)
Hypotheses
Ref Expression
lspsnss.s 𝑆 = (LSubSp‘𝑊)
lspsnss.n 𝑁 = (LSpan‘𝑊)
lspsnel3.w (𝜑𝑊 ∈ LMod)
lspsnel3.u (𝜑𝑈𝑆)
lspsnel3.x (𝜑𝑋𝑈)
lspsnel3.y (𝜑𝑌 ∈ (𝑁‘{𝑋}))
Assertion
Ref Expression
lspsnel3 (𝜑𝑌𝑈)

Proof of Theorem lspsnel3
StepHypRef Expression
1 lspsnel3.w . . 3 (𝜑𝑊 ∈ LMod)
2 lspsnel3.u . . 3 (𝜑𝑈𝑆)
3 lspsnel3.x . . 3 (𝜑𝑋𝑈)
4 lspsnss.s . . . 4 𝑆 = (LSubSp‘𝑊)
5 lspsnss.n . . . 4 𝑁 = (LSpan‘𝑊)
64, 5lspsnss 20252 . . 3 ((𝑊 ∈ LMod ∧ 𝑈𝑆𝑋𝑈) → (𝑁‘{𝑋}) ⊆ 𝑈)
71, 2, 3, 6syl3anc 1370 . 2 (𝜑 → (𝑁‘{𝑋}) ⊆ 𝑈)
8 lspsnel3.y . 2 (𝜑𝑌 ∈ (𝑁‘{𝑋}))
97, 8sseldd 3922 1 (𝜑𝑌𝑈)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1539  wcel 2106  wss 3887  {csn 4561  cfv 6433  LModclmod 20123  LSubSpclss 20193  LSpanclspn 20233
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 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-int 4880  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-riota 7232  df-ov 7278  df-0g 17152  df-mgm 18326  df-sgrp 18375  df-mnd 18386  df-grp 18580  df-lmod 20125  df-lss 20194  df-lsp 20234
This theorem is referenced by:  lspsnel4  20386
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