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Theorem ellimc3ap 15685
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 15684 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
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    e. wcel 2209   A.wral 2528   E.wrex 2529    C_ wss 3220   class class class wbr 4125   -->wf 5368   ` cfv 5372  (class class class)co 6075   CCcc 8167    < clt 8350    - cmin 8487   # cap 8899   RR+crp 10033   abscabs 11741   lim CC climc 15678
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 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 4244  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-setind 4679  ax-cnex 8260
This theorem 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 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-br 4126  df-opab 4188  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-fv 5380  df-ov 6078  df-oprab 6079  df-mpo 6080  df-pm 6915  df-limced 15680
This theorem is referenced by:  limcdifap  15686  limcimolemlt  15688  limcimo  15689  limcresi  15690  cnplimcim  15691  cnplimclemr  15693  limccnpcntop  15699  dveflem  15750
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