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Theorem ellspsn3 21142
Description: A member of the span of the singleton of a vector is a member of a subspace containing the vector. (elspansn3 31954 analog.) (Contributed by NM, 4-Jul-2014.)
Hypotheses
Ref Expression
lspsnss.s 𝑆 = (LSubSp‘𝑊)
lspsnss.n 𝑁 = (LSpan‘𝑊)
ellspsn3.w (𝜑𝑊 ∈ LMod)
ellspsn3.u (𝜑𝑈𝑆)
ellspsn3.x (𝜑𝑋𝑈)
ellspsn3.y (𝜑𝑌 ∈ (𝑁‘{𝑋}))
Assertion
Ref Expression
ellspsn3 (𝜑𝑌𝑈)

Proof of Theorem ellspsn3
StepHypRef Expression
1 ellspsn3.w . . 3 (𝜑𝑊 ∈ LMod)
2 ellspsn3.u . . 3 (𝜑𝑈𝑆)
3 ellspsn3.x . . 3 (𝜑𝑋𝑈)
4 lspsnss.s . . . 4 𝑆 = (LSubSp‘𝑊)
5 lspsnss.n . . . 4 𝑁 = (LSpan‘𝑊)
64, 5lspsnss 21141 . . 3 ((𝑊 ∈ LMod ∧ 𝑈𝑆𝑋𝑈) → (𝑁‘{𝑋}) ⊆ 𝑈)
71, 2, 3, 6syl3anc 1398 . 2 (𝜑 → (𝑁‘{𝑋}) ⊆ 𝑈)
8 ellspsn3.y . 2 (𝜑𝑌 ∈ (𝑁‘{𝑋}))
97, 8sseldd 3941 1 (𝜑𝑌𝑈)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4   = wceq 1570  wcel 2146  wss 3908  {csn 4594  cfv 6543  LModclmod 21011  LSubSpclss 21082  LSpanclspn 21122
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2738  ax-rep 5243  ax-sep 5262  ax-nul 5274  ax-pow 5341  ax-pr 5409
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2570  df-eu 2600  df-clab 2745  df-cleq 2758  df-clel 2841  df-nfc 2915  df-ne 2962  df-ral 3083  df-rex 3093  df-rmo 3372  df-reu 3373  df-rab 3420  df-v 3460  df-sbc 3748  df-csb 3857  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4290  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-int 4918  df-iun 4963  df-br 5115  df-opab 5179  df-mpt 5198  df-id 5561  df-xp 5672  df-rel 5673  df-cnv 5674  df-co 5675  df-dm 5676  df-rn 5677  df-res 5678  df-ima 5679  df-iota 6499  df-fun 6545  df-fn 6546  df-f 6547  df-f1 6548  df-fo 6549  df-f1o 6550  df-fv 6551  df-riota 7380  df-ov 7426  df-0g 17519  df-mgm 18723  df-sgrp 18802  df-mnd 18818  df-grp 19028  df-lmod 21013  df-lss 21083  df-lsp 21123
This theorem is used by:  ellspsn4  21278
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