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Theorem ellspsn3 21246
Description: A member of the span of the singleton of a vector is a member of a subspace containing the vector. (elspansn3 32156 analog.) (Contributed by NM, 4-Jul-2014.)
Hypotheses
Ref Expression
lspsnss.s 𝑆 = (LSubSp‘𝑊)
lspsnss.n 𝑁 = (LSpan‘𝑊)
ellspsn3.w (𝜑 → 𝑊 ∈ LMod)
ellspsn3.u (𝜑 → 𝑈 ∈ 𝑆)
ellspsn3.x (𝜑 → 𝑋 ∈ 𝑈)
ellspsn3.y (𝜑 → 𝑌 ∈ (𝑁‘{𝑋}))
Assertion
Ref Expression
ellspsn3 (𝜑 → 𝑌 ∈ 𝑈)

Proof of Theorem ellspsn3
StepHypRef Expression
1 ellspsn3.w . . 3 (𝜑 → 𝑊 ∈ LMod)
2 ellspsn3.u . . 3 (𝜑 → 𝑈 ∈ 𝑆)
3 ellspsn3.x . . 3 (𝜑 → 𝑋 ∈ 𝑈)
4 lspsnss.s . . . 4 𝑆 = (LSubSp‘𝑊)
5 lspsnss.n . . . 4 𝑁 = (LSpan‘𝑊)
64, 5lspsnss 21245 . . 3 ((𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆 ∧ 𝑋 ∈ 𝑈) → (𝑁‘{𝑋}) ⊆ 𝑈)
71, 2, 3, 6syl3anc 1398 . 2 (𝜑 → (𝑁‘{𝑋}) ⊆ 𝑈)
8 ellspsn3.y . 2 (𝜑 → 𝑌 ∈ (𝑁‘{𝑋}))
97, 8sseldd 3932 1 (𝜑 → 𝑌 ∈ 𝑈)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2145   ⊆ wss 3899  {csn 4584  ‘cfv 6531  LModclmod 21115  LSubSpclss 21186  LSpanclspn 21226
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 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391
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 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rmo 3366  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-int 4908  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-iota 6487  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-riota 7369  df-ov 7415  df-0g 17592  df-mgm 18796  df-sgrp 18888  df-mnd 18904  df-grp 19127  df-lmod 21117  df-lss 21187  df-lsp 21227
This theorem is used by:  ellspsn4  21382
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