Theorem lmodscaf 14584

Description: The scalar multiplication operation is a function. (Contributed by Mario Carneiro, 5-Oct-2015.)

Hypotheses

Ref	Expression
scaffval.b	|- B = ( Base ` W )
scaffval.f	|- F = (Scalar ` W )
scaffval.k	|- K = ( Base ` F )
scaffval.a	|- .xb = ( .sf ` W )

Assertion

Ref	Expression
lmodscaf	|- ( W e. LMod -> .xb : ( K X. B ) --> B )

Proof of Theorem lmodscaf

Dummy variables x y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		scaffval.b	. . . . . 6 |- B = ( Base ` W )
2		scaffval.f	. . . . . 6 |- F = (Scalar ` W )
3		eqid 2234	. . . . . 6 |- ( .s ` W ) = ( .s ` W )
4		scaffval.k	. . . . . 6 |- K = ( Base ` F )
5	1, 2, 3, 4	lmodvscl 14579	. . . . 5 |- ( ( W e. LMod /\ x e. K /\ y e. B ) -> ( x ( .s ` W ) y ) e. B )
6	5	3expb 1231	. . . 4 |- ( ( W e. LMod /\ ( x e. K /\ y e. B ) ) -> ( x ( .s ` W ) y ) e. B )
7	6	ralrimivva 2626	. . 3 |- ( W e. LMod -> A. x e. K A. y e. B ( x ( .s ` W ) y ) e. B )
8		eqid 2234	. . . 4 |- ( x e. K , y e. B |-> ( x ( .s ` W ) y ) ) = ( x e. K , y e. B |-> ( x ( .s ` W ) y ) )
9	8	fmpo 6410	. . 3 |- ( A. x e. K A. y e. B ( x ( .s ` W ) y ) e. B <-> ( x e. K , y e. B |-> ( x ( .s ` W ) y ) ) : ( K X. B ) --> B )
10	7, 9	sylib 122	. 2 |- ( W e. LMod -> ( x e. K , y e. B |-> ( x ( .s ` W ) y ) ) : ( K X. B ) --> B )
11		scaffval.a	. . . 4 |- .xb = ( .sf ` W )
12	1, 2, 4, 11, 3	scaffvalg 14580	. . 3 |- ( W e. LMod -> .xb = ( x e. K , y e. B |-> ( x ( .s ` W ) y ) ) )
13	12	feq1d 5500	. 2 |- ( W e. LMod -> ( .xb : ( K X. B ) --> B <-> ( x e. K , y e. B |-> ( x ( .s ` W ) y ) ) : ( K X. B ) --> B ) )
14	10, 13	mpbird 167	1 |- ( W e. LMod -> .xb : ( K X. B ) --> B )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2205   A.wral 2522   X. cxp 4752   -->wf 5353   ` cfv 5357  (class class class)co 6058   e. cmpo 6060   Basecbs 13296  Scalarcsca 13377   .scvsca 13378   LModclmod 14561   .sfcscaf 14562

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 2207  ax-14 2208  ax-ext 2216  ax-coll 4230  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-cnex 8234  ax-resscn 8235  ax-1re 8237  ax-addrcl 8240

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3046  df-csb 3142  df-un 3218  df-in 3220  df-ss 3227  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-iun 3998  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-f1 5362  df-fo 5363  df-f1o 5364  df-fv 5365  df-ov 6061  df-oprab 6062  df-mpo 6063  df-1st 6347  df-2nd 6348  df-inn 9255  df-2 9313  df-3 9314  df-4 9315  df-5 9316  df-6 9317  df-ndx 13299  df-slot 13300  df-base 13302  df-plusg 13387  df-mulr 13388  df-sca 13390  df-vsca 13391  df-lmod 14563  df-scaf 14564

This theorem is referenced by: (None)