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Theorem linds1 21768
Description: An independent set of vectors is a set of vectors. (Contributed by Stefan O'Rear, 24-Feb-2015.)
Hypothesis
Ref Expression
islinds.b 𝐵 = (Base‘𝑊)
Assertion
Ref Expression
linds1 (𝑋 ∈ (LIndS‘𝑊) → 𝑋𝐵)

Proof of Theorem linds1
StepHypRef Expression
1 elfvdm 6912 . . . 4 (𝑋 ∈ (LIndS‘𝑊) → 𝑊 ∈ dom LIndS)
2 islinds.b . . . . 5 𝐵 = (Base‘𝑊)
32islinds 21767 . . . 4 (𝑊 ∈ dom LIndS → (𝑋 ∈ (LIndS‘𝑊) ↔ (𝑋𝐵 ∧ ( I ↾ 𝑋) LIndF 𝑊)))
41, 3syl 17 . . 3 (𝑋 ∈ (LIndS‘𝑊) → (𝑋 ∈ (LIndS‘𝑊) ↔ (𝑋𝐵 ∧ ( I ↾ 𝑋) LIndF 𝑊)))
54ibi 267 . 2 (𝑋 ∈ (LIndS‘𝑊) → (𝑋𝐵 ∧ ( I ↾ 𝑋) LIndF 𝑊))
65simpld 494 1 (𝑋 ∈ (LIndS‘𝑊) → 𝑋𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395   = wceq 1540  wcel 2108  wss 3926   class class class wbr 5119   I cid 5547  dom cdm 5654  cres 5656  cfv 6530  Basecbs 17226   LIndF clindf 21762  LIndSclinds 21763
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-rab 3416  df-v 3461  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-br 5120  df-opab 5182  df-mpt 5202  df-id 5548  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-res 5666  df-iota 6483  df-fun 6532  df-fv 6538  df-linds 21765
This theorem is referenced by:  lindsss  21782  lindsmm2  21787  islinds3  21792  islinds4  21793  0nellinds  33331  linds2eq  33342  lindsunlem  33610  lindsun  33611  dimkerim  33613  lindsadd  37583  lindsdom  37584  lindsenlbs  37585
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