Theorem tfrcllembacc 6564

Description: Lemma for tfrcl 6573. Each element of B is an acceptable function. (Contributed by Jim Kingdon, 25-Mar-2022.)

Hypotheses

Ref	Expression
tfrcl.f	|- F = recs ( G )
tfrcl.g	|- ( ph -> Fun G )
tfrcl.x	|- ( ph -> Ord X )
tfrcl.ex	|- ( ( ph /\ x e. X /\ f : x --> S ) -> ( G ` f ) e. S )
tfrcllemsucfn.1	|- A = { f | E. x e. X ( f : x --> S /\ A. y e. x ( f ` y ) = ( G ` ( f |` y ) ) ) }
tfrcllembacc.3	|- B = { h | E. z e. D E. g ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) }
tfrcllembacc.u	|- ( ( ph /\ x e. U. X ) -> suc x e. X )
tfrcllembacc.4	|- ( ph -> D e. X )
tfrcllembacc.5	|- ( ph -> A. z e. D E. g ( g : z --> S /\ A. w e. z ( g ` w ) = ( G ` ( g |` w ) ) ) )

Assertion

Ref	Expression
tfrcllembacc	|- ( ph -> B C_ A )

Distinct variable groups:   A, f, g, h, x, y, z   D, f, g, x, y   f, G, x, y   S, f, x, y   f, X, x   ph, f, g, h, x, y, z

Allowed substitution hints:   ph( w)   A( w)   B( x, y, z, w, f, g, h)   D( z, w, h)   S( z, w, g, h)   F( x, y, z, w, f, g, h)   G( z, w, g, h)   X( y, z, w, g, h)

Proof of Theorem tfrcllembacc

Step	Hyp	Ref	Expression
1		tfrcllembacc.3	. 2 |- B = { h | E. z e. D E. g ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) }
2		simpr3 1032	. . . . . . 7 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> h = ( g u. { <. z , ( G ` g ) >. } ) )
3		tfrcl.f	. . . . . . . 8 |- F = recs ( G )
4		tfrcl.g	. . . . . . . . 9 |- ( ph -> Fun G )
5	4	ad2antrr 488	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> Fun G )
6		tfrcl.x	. . . . . . . . 9 |- ( ph -> Ord X )
7	6	ad2antrr 488	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> Ord X )
8		simp1ll 1087	. . . . . . . . 9 |- ( ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) /\ x e. X /\ f : x --> S ) -> ph )
9		tfrcl.ex	. . . . . . . . 9 |- ( ( ph /\ x e. X /\ f : x --> S ) -> ( G ` f ) e. S )
10	8, 9	syld3an1 1320	. . . . . . . 8 |- ( ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) /\ x e. X /\ f : x --> S ) -> ( G ` f ) e. S )
11		tfrcllemsucfn.1	. . . . . . . 8 |- A = { f | E. x e. X ( f : x --> S /\ A. y e. x ( f ` y ) = ( G ` ( f |` y ) ) ) }
12		tfrcllembacc.4	. . . . . . . . 9 |- ( ph -> D e. X )
13	12	ad2antrr 488	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> D e. X )
14		simplr 529	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> z e. D )
15		tfrcllembacc.u	. . . . . . . . . 10 |- ( ( ph /\ x e. U. X ) -> suc x e. X )
16	15	adantlr 477	. . . . . . . . 9 |- ( ( ( ph /\ z e. D ) /\ x e. U. X ) -> suc x e. X )
17	16	adantlr 477	. . . . . . . 8 |- ( ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) /\ x e. U. X ) -> suc x e. X )
18		simpr1 1030	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> g : z --> S )
19		simpr2 1031	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> g e. A )
20	3, 5, 7, 10, 11, 13, 14, 17, 18, 19	tfrcllemsucaccv 6563	. . . . . . 7 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> ( g u. { <. z , ( G ` g ) >. } ) e. A )
21	2, 20	eqeltrd 2308	. . . . . 6 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> h e. A )
22	21	ex 115	. . . . 5 |- ( ( ph /\ z e. D ) -> ( ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) -> h e. A ) )
23	22	exlimdv 1867	. . . 4 |- ( ( ph /\ z e. D ) -> ( E. g ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) -> h e. A ) )
24	23	rexlimdva 2651	. . 3 |- ( ph -> ( E. z e. D E. g ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) -> h e. A ) )
25	24	abssdv 3302	. 2 |- ( ph -> { h | E. z e. D E. g ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) } C_ A )
26	1, 25	eqsstrid 3274	1 |- ( ph -> B C_ A )

Syntax hints:   -> wi 4   /\ wa 104   /\ w3a 1005   = wceq 1398   E.wex 1541   e. wcel 2202   {cab 2217   A.wral 2511   E.wrex 2512   u. cun 3199   C_ wss 3201   {csn 3673   <.cop 3676   U.cuni 3898   Ord word 4465   suc csuc 4468   |` cres 4733   Fun wfun 5327   -->wf 5329   ` cfv 5333  recscrecs 6513

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-in1 619  ax-in2 620  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-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  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-ne 2404  df-ral 2516  df-rex 2517  df-v 2805  df-sbc 3033  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-br 4094  df-opab 4156  df-tr 4193  df-id 4396  df-iord 4469  df-on 4471  df-suc 4474  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341

This theorem is referenced by:  tfrcllembfn  6566  tfrcllemubacc  6568