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Theorem tz9.12lem2 8651
Description: Lemma for tz9.12 8653. (Contributed by NM, 22-Sep-2003.)
Hypotheses
Ref Expression
tz9.12lem.1  |-  A  e. 
_V
tz9.12lem.2  |-  F  =  ( z  e.  _V  |->  |^|
{ v  e.  On  |  z  e.  ( R1 `  v ) } )
Assertion
Ref Expression
tz9.12lem2  |-  suc  U. ( F " A )  e.  On
Distinct variable group:    z, v, A
Allowed substitution hints:    F( z, v)

Proof of Theorem tz9.12lem2
StepHypRef Expression
1 tz9.12lem.1 . . . 4  |-  A  e. 
_V
2 tz9.12lem.2 . . . 4  |-  F  =  ( z  e.  _V  |->  |^|
{ v  e.  On  |  z  e.  ( R1 `  v ) } )
31, 2tz9.12lem1 8650 . . 3  |-  ( F
" A )  C_  On
42funmpt2 5927 . . . . 5  |-  Fun  F
51funimaex 5976 . . . . 5  |-  ( Fun 
F  ->  ( F " A )  e.  _V )
64, 5ax-mp 5 . . . 4  |-  ( F
" A )  e. 
_V
76ssonunii 6987 . . 3  |-  ( ( F " A ) 
C_  On  ->  U. ( F " A )  e.  On )
83, 7ax-mp 5 . 2  |-  U. ( F " A )  e.  On
98onsuci 7038 1  |-  suc  U. ( F " A )  e.  On
Colors of variables: wff setvar class
Syntax hints:    = wceq 1483    e. wcel 1990   {crab 2916   _Vcvv 3200    C_ wss 3574   U.cuni 4436   |^|cint 4475    |-> cmpt 4729   "cima 5117   Oncon0 5723   suc csuc 5725   Fun wfun 5882   ` cfv 5888   R1cr1 8625
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pr 4906  ax-un 6949
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-ord 5726  df-on 5727  df-suc 5729  df-fun 5890
This theorem is referenced by:  tz9.12lem3  8652  tz9.12  8653
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