Theorem tfrcllembacc 6626

Description: Lemma for tfrcl 6635. 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 1036	. . . . . . 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 492	. . . . . . . 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 492	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> Ord X )
8		simp1ll 1091	. . . . . . . . 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 1324	. . . . . . . 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 492	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> D e. X )
14		simplr 533	. . . . . . . 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 481	. . . . . . . . 9 |- ( ( ( ph /\ z e. D ) /\ x e. U. X ) -> suc x e. X )
17	16	adantlr 481	. . . . . . . 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 1034	. . . . . . . 8 |- ( ( ( ph /\ z e. D ) /\ ( g : z --> S /\ g e. A /\ h = ( g u. { <. z , ( G ` g ) >. } ) ) ) -> g : z --> S )
19		simpr2 1035	. . . . . . . 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 6625	. . . . . . 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 2315	. . . . . 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 1872	. . . 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 2668	. . 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 3322	. 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 3294	1 |- ( ph -> B C_ A )

This proof depends on syntax axioms:   -> wi 4   /\ wa 104   /\ w3a 1009   = wceq 1402   E.wex 1545   e. wcel 2209   {cab 2224   A.wral 2528   E.wrex 2529   u. cun 3218   C_ wss 3220   {csn 3709   <.cop 3712   U.cuni 3935   Ord word 4507   suc csuc 4510   |` cres 4776   Fun wfun 5371   -->wf 5373   ` cfv 5377  recscrecs 6575

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684

This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-ral 2533  df-rex 2534  df-v 2823  df-sbc 3052  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-br 4131  df-opab 4193  df-tr 4230  df-id 4438  df-iord 4511  df-on 4513  df-suc 4516  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385

This theorem is used by:  tfrcllembfn  6628  tfrcllemubacc  6630