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Theorem ellimc3ap 15762
Description: Write the epsilon-delta definition of a limit. (Contributed by Mario Carneiro, 28-Dec-2016.) Use apartness. (Revised by Jim Kingdon, 3-Jun-2023.)
Hypotheses
Ref Expression
ellimc3.f  |-  ( ph  ->  F : A --> CC )
ellimc3.a  |-  ( ph  ->  A  C_  CC )
ellimc3.b  |-  ( ph  ->  B  e.  CC )
Assertion
Ref Expression
ellimc3ap  |-  ( ph  ->  ( C  e.  ( F lim CC  B )  <-> 
( C  e.  CC  /\ 
A. x  e.  RR+  E. y  e.  RR+  A. z  e.  A  ( (
z #  B  /\  ( abs `  ( z  -  B ) )  < 
y )  ->  ( abs `  ( ( F `
 z )  -  C ) )  < 
x ) ) ) )
Distinct variable groups:    z, A    x, B, y, z    x, C, y, z    x, F, y    ph, x, y    z, F
Allowed substitution hints:    ph( z)    A( x,  y)

Proof of Theorem ellimc3ap
StepHypRef Expression
1 ellimc3.f . 2  |-  ( ph  ->  F : A --> CC )
2 ellimc3.a . 2  |-  ( ph  ->  A  C_  CC )
3 ellimc3.b . 2  |-  ( ph  ->  B  e.  CC )
4 nfcv 2392 . 2  |-  F/_ z F
51, 2, 3, 4ellimc3apf 15761 1  |-  ( ph  ->  ( C  e.  ( F lim CC  B )  <-> 
( C  e.  CC  /\ 
A. x  e.  RR+  E. y  e.  RR+  A. z  e.  A  ( (
z #  B  /\  ( abs `  ( z  -  B ) )  < 
y )  ->  ( abs `  ( ( F `
 z )  -  C ) )  < 
x ) ) ) )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    /\ wa 104    <-> wb 105    e. wcel 2209   A.wral 2528   E.wrex 2529    C_ wss 3220   class class class wbr 4130   -->wf 5373   ` cfv 5377  (class class class)co 6085   CCcc 8177    < clt 8360    - cmin 8497   # cap 8909   RR+crp 10054   abscabs 11763   lim CC climc 15755
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  ax-cnex 8270
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-rab 2537  df-v 2823  df-sbc 3052  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-br 4131  df-opab 4193  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-fv 5385  df-ov 6088  df-oprab 6089  df-mpo 6090  df-pm 6925  df-limced 15757
This theorem is used by:  limcdifap  15763  limcimolemlt  15765  limcimo  15766  limcresi  15767  cnplimcim  15768  cnplimclemr  15770  limccnpcntop  15776  dveflem  15827
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