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Theorem lspss 17442
Description: Span preserves subset ordering. (spanss 26039 analog.) (Contributed by NM, 11-Dec-2013.) (Revised by Mario Carneiro, 19-Jun-2014.)
Hypotheses
Ref Expression
lspss.v  |-  V  =  ( Base `  W
)
lspss.n  |-  N  =  ( LSpan `  W )
Assertion
Ref Expression
lspss  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  ( N `  T )  C_  ( N `  U
) )

Proof of Theorem lspss
Dummy variable  t is distinct from all other variables.
StepHypRef Expression
1 simpl3 1001 . . . . 5  |-  ( ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  /\  t  e.  ( LSubSp `  W ) )  ->  T  C_  U )
2 sstr2 3511 . . . . 5  |-  ( T 
C_  U  ->  ( U  C_  t  ->  T  C_  t ) )
31, 2syl 16 . . . 4  |-  ( ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  /\  t  e.  ( LSubSp `  W ) )  -> 
( U  C_  t  ->  T  C_  t )
)
43ss2rabdv 3581 . . 3  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  { t  e.  ( LSubSp `  W
)  |  U  C_  t }  C_  { t  e.  ( LSubSp `  W
)  |  T  C_  t } )
5 intss 4303 . . 3  |-  ( { t  e.  ( LSubSp `  W )  |  U  C_  t }  C_  { t  e.  ( LSubSp `  W
)  |  T  C_  t }  ->  |^| { t  e.  ( LSubSp `  W
)  |  T  C_  t }  C_  |^| { t  e.  ( LSubSp `  W
)  |  U  C_  t } )
64, 5syl 16 . 2  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  |^| { t  e.  ( LSubSp `  W
)  |  T  C_  t }  C_  |^| { t  e.  ( LSubSp `  W
)  |  U  C_  t } )
7 simp1 996 . . 3  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  W  e.  LMod )
8 simp3 998 . . . 4  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  T  C_  U )
9 simp2 997 . . . 4  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  U  C_  V )
108, 9sstrd 3514 . . 3  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  T  C_  V )
11 lspss.v . . . 4  |-  V  =  ( Base `  W
)
12 eqid 2467 . . . 4  |-  ( LSubSp `  W )  =  (
LSubSp `  W )
13 lspss.n . . . 4  |-  N  =  ( LSpan `  W )
1411, 12, 13lspval 17433 . . 3  |-  ( ( W  e.  LMod  /\  T  C_  V )  ->  ( N `  T )  =  |^| { t  e.  ( LSubSp `  W )  |  T  C_  t } )
157, 10, 14syl2anc 661 . 2  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  ( N `  T )  =  |^| { t  e.  ( LSubSp `  W )  |  T  C_  t } )
1611, 12, 13lspval 17433 . . 3  |-  ( ( W  e.  LMod  /\  U  C_  V )  ->  ( N `  U )  =  |^| { t  e.  ( LSubSp `  W )  |  U  C_  t } )
17163adant3 1016 . 2  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  ( N `  U )  =  |^| { t  e.  ( LSubSp `  W )  |  U  C_  t } )
186, 15, 173sstr4d 3547 1  |-  ( ( W  e.  LMod  /\  U  C_  V  /\  T  C_  U )  ->  ( N `  T )  C_  ( N `  U
) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 369    /\ w3a 973    = wceq 1379    e. wcel 1767   {crab 2818    C_ wss 3476   |^|cint 4282   ` cfv 5588   Basecbs 14493   LModclmod 17324   LSubSpclss 17390   LSpanclspn 17429
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1601  ax-4 1612  ax-5 1680  ax-6 1719  ax-7 1739  ax-8 1769  ax-9 1771  ax-10 1786  ax-11 1791  ax-12 1803  ax-13 1968  ax-ext 2445  ax-rep 4558  ax-sep 4568  ax-nul 4576  ax-pow 4625  ax-pr 4686
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1382  df-ex 1597  df-nf 1600  df-sb 1712  df-eu 2279  df-mo 2280  df-clab 2453  df-cleq 2459  df-clel 2462  df-nfc 2617  df-ne 2664  df-ral 2819  df-rex 2820  df-reu 2821  df-rmo 2822  df-rab 2823  df-v 3115  df-sbc 3332  df-csb 3436  df-dif 3479  df-un 3481  df-in 3483  df-ss 3490  df-nul 3786  df-if 3940  df-pw 4012  df-sn 4028  df-pr 4030  df-op 4034  df-uni 4246  df-int 4283  df-iun 4327  df-br 4448  df-opab 4506  df-mpt 4507  df-id 4795  df-xp 5005  df-rel 5006  df-cnv 5007  df-co 5008  df-dm 5009  df-rn 5010  df-res 5011  df-ima 5012  df-iota 5551  df-fun 5590  df-fn 5591  df-f 5592  df-f1 5593  df-fo 5594  df-f1o 5595  df-fv 5596  df-riota 6246  df-ov 6288  df-0g 14700  df-mnd 15735  df-grp 15871  df-lmod 17326  df-lss 17391  df-lsp 17430
This theorem is referenced by:  lspun  17445  lspssp  17446  lspprid1  17455  lbspss  17540  lspsolvlem  17600  lspsolv  17601  lsppratlem3  17607  lbsextlem2  17617  lbsextlem3  17618  lbsextlem4  17619  lindfrn  18663  f1lindf  18664  lssats  34026  lpssat  34027  lssatle  34029  lssat  34030  dvhdimlem  36458  dvh3dim3N  36463  mapdindp2  36735  lspindp5  36784
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