Theorem lspss 14103

Description: Span preserves subset ordering. (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.

Step	Hyp	Ref	Expression
1		simpl3 1004	. . . . 5 |- ( ( ( W e. LMod /\ U C_ V /\ T C_ U ) /\ t e. ( LSubSp ` W ) ) -> T C_ U )
2		sstr2 3199	. . . . 5 |- ( T C_ U -> ( U C_ t -> T C_ t ) )
3	1, 2	syl 14	. . . 4 |- ( ( ( W e. LMod /\ U C_ V /\ T C_ U ) /\ t e. ( LSubSp ` W ) ) -> ( U C_ t -> T C_ t ) )
4	3	ss2rabdv 3273	. . 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 3905	. . 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 } )
6	4, 5	syl 14	. 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 999	. . 3 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> W e. LMod )
8		simp3 1001	. . . 4 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> T C_ U )
9		simp2 1000	. . . 4 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> U C_ V )
10	8, 9	sstrd 3202	. . 3 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> T C_ V )
11		lspss.v	. . . 4 |- V = ( Base ` W )
12		eqid 2204	. . . 4 |- ( LSubSp ` W ) = ( LSubSp ` W )
13		lspss.n	. . . 4 |- N = ( LSpan ` W )
14	11, 12, 13	lspval 14094	. . 3 |- ( ( W e. LMod /\ T C_ V ) -> ( N ` T ) = |^| { t e. ( LSubSp ` W ) | T C_ t } )
15	7, 10, 14	syl2anc 411	. 2 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> ( N ` T ) = |^| { t e. ( LSubSp ` W ) | T C_ t } )
16	11, 12, 13	lspval 14094	. . 3 |- ( ( W e. LMod /\ U C_ V ) -> ( N ` U ) = |^| { t e. ( LSubSp ` W ) | U C_ t } )
17	16	3adant3 1019	. 2 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> ( N ` U ) = |^| { t e. ( LSubSp ` W ) | U C_ t } )
18	6, 15, 17	3sstr4d 3237	1 |- ( ( W e. LMod /\ U C_ V /\ T C_ U ) -> ( N ` T ) C_ ( N ` U ) )

Syntax hints:   -> wi 4   /\ wa 104   /\ w3a 980   = wceq 1372   e. wcel 2175   {crab 2487   C_ wss 3165   |^|cint 3884   ` cfv 5270   Basecbs 12774   LModclmod 13991   LSubSpclss 14056   LSpanclspn 14090

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 710  ax-5 1469  ax-7 1470  ax-gen 1471  ax-ie1 1515  ax-ie2 1516  ax-8 1526  ax-10 1527  ax-11 1528  ax-i12 1529  ax-bndl 1531  ax-4 1532  ax-17 1548  ax-i9 1552  ax-ial 1556  ax-i5r 1557  ax-13 2177  ax-14 2178  ax-ext 2186  ax-coll 4158  ax-sep 4161  ax-pow 4217  ax-pr 4252  ax-un 4479  ax-cnex 8015  ax-resscn 8016  ax-1re 8018  ax-addrcl 8021

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1375  df-nf 1483  df-sb 1785  df-eu 2056  df-mo 2057  df-clab 2191  df-cleq 2197  df-clel 2200  df-nfc 2336  df-ral 2488  df-rex 2489  df-reu 2490  df-rmo 2491  df-rab 2492  df-v 2773  df-sbc 2998  df-csb 3093  df-un 3169  df-in 3171  df-ss 3178  df-pw 3617  df-sn 3638  df-pr 3639  df-op 3641  df-uni 3850  df-int 3885  df-iun 3928  df-br 4044  df-opab 4105  df-mpt 4106  df-id 4339  df-xp 4680  df-rel 4681  df-cnv 4682  df-co 4683  df-dm 4684  df-rn 4685  df-res 4686  df-ima 4687  df-iota 5231  df-fun 5272  df-fn 5273  df-f 5274  df-f1 5275  df-fo 5276  df-f1o 5277  df-fv 5278  df-riota 5898  df-ov 5946  df-inn 9036  df-2 9094  df-3 9095  df-4 9096  df-5 9097  df-6 9098  df-ndx 12777  df-slot 12778  df-base 12780  df-plusg 12864  df-mulr 12865  df-sca 12867  df-vsca 12868  df-0g 13032  df-mgm 13130  df-sgrp 13176  df-mnd 13191  df-grp 13277  df-lmod 13993  df-lssm 14057  df-lsp 14091

This theorem is referenced by:  lspun  14106  lspssp  14107  lspprid1  14115