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Theorem lspex 14491
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 2231 . . 3  |-  ( Base `  W )  =  (
Base `  W )
2 eqid 2231 . . 3  |-  ( LSubSp `  W )  =  (
LSubSp `  W )
3 eqid 2231 . . 3  |-  ( LSpan `  W )  =  (
LSpan `  W )
41, 2, 3lspfval 14484 . 2  |-  ( W  e.  X  ->  ( LSpan `  W )  =  ( s  e.  ~P ( Base `  W )  |-> 
|^| { t  e.  (
LSubSp `  W )  |  s  C_  t }
) )
5 basfn 13221 . . . . 5  |-  Base  Fn  _V
6 elex 2815 . . . . 5  |-  ( W  e.  X  ->  W  e.  _V )
7 funfvex 5665 . . . . . 6  |-  ( ( Fun  Base  /\  W  e. 
dom  Base )  ->  ( Base `  W )  e. 
_V )
87funfni 5439 . . . . 5  |-  ( (
Base  Fn  _V  /\  W  e.  _V )  ->  ( Base `  W )  e. 
_V )
95, 6, 8sylancr 414 . . . 4  |-  ( W  e.  X  ->  ( Base `  W )  e. 
_V )
109pwexd 4277 . . 3  |-  ( W  e.  X  ->  ~P ( Base `  W )  e.  _V )
1110mptexd 5891 . 2  |-  ( W  e.  X  ->  (
s  e.  ~P ( Base `  W )  |->  |^|
{ t  e.  (
LSubSp `  W )  |  s  C_  t }
)  e.  _V )
124, 11eqeltrd 2308 1  |-  ( W  e.  X  ->  ( LSpan `  W )  e. 
_V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2202   {crab 2515   _Vcvv 2803    C_ wss 3201   ~Pcpw 3656   |^|cint 3933    |-> cmpt 4155    Fn wfn 5328   ` cfv 5333   Basecbs 13162   LSubSpclss 14448   LSpanclspn 14482
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-cnex 8183  ax-resscn 8184  ax-1re 8186  ax-addrcl 8189
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-rex 2517  df-reu 2518  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-inn 9203  df-ndx 13165  df-slot 13166  df-base 13168  df-lsp 14483
This theorem is referenced by:  rspex  14570
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