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Theorem lspex 14704
Description: Existence of the span of a set of vectors. (Contributed by Jim Kingdon, 25-Apr-2025.)
Assertion
Ref Expression
lspex  |-  ( W  e.  X  ->  ( LSpan `  W )  e. 
_V )

Proof of Theorem lspex
Dummy variables  s  t are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2238 . . 3  |-  ( Base `  W )  =  (
Base `  W )
2 eqid 2238 . . 3  |-  ( LSubSp `  W )  =  (
LSubSp `  W )
3 eqid 2238 . . 3  |-  ( LSpan `  W )  =  (
LSpan `  W )
41, 2, 3lspfval 14697 . 2  |-  ( W  e.  X  ->  ( LSpan `  W )  =  ( s  e.  ~P ( Base `  W )  |-> 
|^| { t  e.  (
LSubSp `  W )  |  s  C_  t }
) )
5 basfn 13389 . . . . 5  |-  Base  Fn  _V
6 elex 2833 . . . . 5  |-  ( W  e.  X  ->  W  e.  _V )
7 funfvex 5707 . . . . . 6  |-  ( ( Fun  Base  /\  W  e. 
dom  Base )  ->  ( Base `  W )  e. 
_V )
87funfni 5478 . . . . 5  |-  ( (
Base  Fn  _V  /\  W  e.  _V )  ->  ( Base `  W )  e. 
_V )
95, 6, 8sylancr 418 . . . 4  |-  ( W  e.  X  ->  ( Base `  W )  e. 
_V )
109pwexd 4313 . . 3  |-  ( W  e.  X  ->  ~P ( Base `  W )  e.  _V )
1110mptexd 5935 . 2  |-  ( W  e.  X  ->  (
s  e.  ~P ( Base `  W )  |->  |^|
{ t  e.  (
LSubSp `  W )  |  s  C_  t }
)  e.  _V )
124, 11eqeltrd 2315 1  |-  ( W  e.  X  ->  ( LSpan `  W )  e. 
_V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2209   {crab 2532   _Vcvv 2821    C_ wss 3220   ~Pcpw 3685   |^|cint 3965    |-> cmpt 4187    Fn wfn 5367   ` cfv 5372   Basecbs 13330   LSubSpclss 14661   LSpanclspn 14695
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4241  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-cnex 8260  ax-resscn 8261  ax-1re 8263  ax-addrcl 8266
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-int 3966  df-iun 4009  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-ima 4782  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-f1 5377  df-fo 5378  df-f1o 5379  df-fv 5380  df-inn 9284  df-ndx 13333  df-slot 13334  df-base 13336  df-lsp 14696
This theorem is referenced by:  rspex  14783
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