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Theorem frecuzrdglem 10773
Description: A helper lemma for the value of a recursive definition generator on upper integers. (Contributed by Jim Kingdon, 26-May-2020.)
Hypotheses
Ref Expression
frec2uz.1  |-  ( ph  ->  C  e.  ZZ )
frec2uz.2  |-  G  = frec ( ( x  e.  ZZ  |->  ( x  + 
1 ) ) ,  C )
frecuzrdgrrn.a  |-  ( ph  ->  A  e.  S )
frecuzrdgrrn.f  |-  ( (
ph  /\  ( x  e.  ( ZZ>= `  C )  /\  y  e.  S
) )  ->  (
x F y )  e.  S )
frecuzrdgrrn.2  |-  R  = frec ( ( x  e.  ( ZZ>= `  C ) ,  y  e.  S  |-> 
<. ( x  +  1 ) ,  ( x F y ) >.
) ,  <. C ,  A >. )
frecuzrdglem.b  |-  ( ph  ->  B  e.  ( ZZ>= `  C ) )
Assertion
Ref Expression
frecuzrdglem  |-  ( ph  -> 
<. B ,  ( 2nd `  ( R `  ( `' G `  B ) ) ) >.  e.  ran  R )
Distinct variable groups:    y, A    x, C, y    y, G    x, F, y    x, S, y    ph, x, y    x, B, y
Allowed substitution hints:    A( x)    R( x, y)    G( x)

Proof of Theorem frecuzrdglem
StepHypRef Expression
1 frec2uz.1 . . . 4  |-  ( ph  ->  C  e.  ZZ )
2 frec2uz.2 . . . 4  |-  G  = frec ( ( x  e.  ZZ  |->  ( x  + 
1 ) ) ,  C )
3 frecuzrdgrrn.a . . . 4  |-  ( ph  ->  A  e.  S )
4 frecuzrdgrrn.f . . . 4  |-  ( (
ph  /\  ( x  e.  ( ZZ>= `  C )  /\  y  e.  S
) )  ->  (
x F y )  e.  S )
5 frecuzrdgrrn.2 . . . 4  |-  R  = frec ( ( x  e.  ( ZZ>= `  C ) ,  y  e.  S  |-> 
<. ( x  +  1 ) ,  ( x F y ) >.
) ,  <. C ,  A >. )
61, 2frec2uzf1od 10768 . . . . 5  |-  ( ph  ->  G : om -1-1-onto-> ( ZZ>= `  C )
)
7 frecuzrdglem.b . . . . 5  |-  ( ph  ->  B  e.  ( ZZ>= `  C ) )
8 f1ocnvdm 5954 . . . . 5  |-  ( ( G : om -1-1-onto-> ( ZZ>= `  C )  /\  B  e.  ( ZZ>=
`  C ) )  ->  ( `' G `  B )  e.  om )
96, 7, 8syl2anc 411 . . . 4  |-  ( ph  ->  ( `' G `  B )  e.  om )
101, 2, 3, 4, 5, 9frec2uzrdg 10771 . . 3  |-  ( ph  ->  ( R `  ( `' G `  B ) )  =  <. ( G `  ( `' G `  B )
) ,  ( 2nd `  ( R `  ( `' G `  B ) ) ) >. )
11 f1ocnvfv2 5951 . . . . 5  |-  ( ( G : om -1-1-onto-> ( ZZ>= `  C )  /\  B  e.  ( ZZ>=
`  C ) )  ->  ( G `  ( `' G `  B ) )  =  B )
126, 7, 11syl2anc 411 . . . 4  |-  ( ph  ->  ( G `  ( `' G `  B ) )  =  B )
1312opeq1d 3889 . . 3  |-  ( ph  -> 
<. ( G `  ( `' G `  B ) ) ,  ( 2nd `  ( R `  ( `' G `  B ) ) ) >.  =  <. B ,  ( 2nd `  ( R `  ( `' G `  B )
) ) >. )
1410, 13eqtrd 2265 . 2  |-  ( ph  ->  ( R `  ( `' G `  B ) )  =  <. B , 
( 2nd `  ( R `  ( `' G `  B )
) ) >. )
151, 2, 3, 4, 5frecuzrdgrcl 10772 . . . 4  |-  ( ph  ->  R : om --> ( (
ZZ>= `  C )  X.  S ) )
16 ffn 5508 . . . 4  |-  ( R : om --> ( (
ZZ>= `  C )  X.  S )  ->  R  Fn  om )
1715, 16syl 14 . . 3  |-  ( ph  ->  R  Fn  om )
18 fnfvelrn 5809 . . 3  |-  ( ( R  Fn  om  /\  ( `' G `  B )  e.  om )  -> 
( R `  ( `' G `  B ) )  e.  ran  R
)
1917, 9, 18syl2anc 411 . 2  |-  ( ph  ->  ( R `  ( `' G `  B ) )  e.  ran  R
)
2014, 19eqeltrrd 2310 1  |-  ( ph  -> 
<. B ,  ( 2nd `  ( R `  ( `' G `  B ) ) ) >.  e.  ran  R )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    = wceq 1398    e. wcel 2203   <.cop 3692    |-> cmpt 4171   omcom 4712    X. cxp 4747   `'ccnv 4748   ran crn 4750    Fn wfn 5347   -->wf 5348   -1-1-onto->wf1o 5351   ` cfv 5352  (class class class)co 6050    e. cmpo 6052   2ndc2nd 6333  freccfrec 6621   1c1 8128    + caddc 8130   ZZcz 9577   ZZ>=cuz 9853
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 2205  ax-14 2206  ax-ext 2214  ax-coll 4225  ax-sep 4228  ax-nul 4236  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659  ax-iinf 4710  ax-cnex 8218  ax-resscn 8219  ax-1cn 8220  ax-1re 8221  ax-icn 8222  ax-addcl 8223  ax-addrcl 8224  ax-mulcl 8225  ax-addcom 8227  ax-addass 8229  ax-distr 8231  ax-i2m1 8232  ax-0lt1 8233  ax-0id 8235  ax-rnegex 8236  ax-cnre 8238  ax-pre-ltirr 8239  ax-pre-ltwlin 8240  ax-pre-lttrn 8241  ax-pre-ltadd 8243
This theorem depends on definitions:  df-bi 117  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-nel 2508  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2815  df-sbc 3043  df-csb 3139  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-nul 3509  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-iun 3993  df-br 4110  df-opab 4172  df-mpt 4173  df-tr 4209  df-id 4414  df-iord 4487  df-on 4489  df-ilim 4490  df-suc 4492  df-iom 4713  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-res 4761  df-ima 4762  df-iota 5312  df-fun 5354  df-fn 5355  df-f 5356  df-f1 5357  df-fo 5358  df-f1o 5359  df-fv 5360  df-riota 6003  df-ov 6053  df-oprab 6054  df-mpo 6055  df-1st 6334  df-2nd 6335  df-recs 6536  df-frec 6622  df-pnf 8310  df-mnf 8311  df-xr 8312  df-ltxr 8313  df-le 8314  df-sub 8446  df-neg 8447  df-inn 9238  df-n0 9497  df-z 9578  df-uz 9854
This theorem is referenced by:  frecuzrdgtcl  10774  frecuzrdgsuc  10776
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