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Theorem dvidlemap 15485
Description: Lemma for dvid 15489 and dvconst 15488. (Contributed by Mario Carneiro, 8-Aug-2014.) (Revised by Jim Kingdon, 2-Aug-2023.)
Hypotheses
Ref Expression
dvidlem.1  |-  ( ph  ->  F : CC --> CC )
dvidlemap.2  |-  ( (
ph  /\  ( x  e.  CC  /\  z  e.  CC  /\  z #  x ) )  ->  (
( ( F `  z )  -  ( F `  x )
)  /  ( z  -  x ) )  =  B )
dvidlem.3  |-  B  e.  CC
Assertion
Ref Expression
dvidlemap  |-  ( ph  ->  ( CC  _D  F
)  =  ( CC 
X.  { B }
) )
Distinct variable groups:    x, z, B   
x, F, z    ph, x, z

Proof of Theorem dvidlemap
Dummy variable  w is distinct from all other variables.
StepHypRef Expression
1 dvidlem.1 . . . . . 6  |-  ( ph  ->  F : CC --> CC )
2 cnex 8199 . . . . . . 7  |-  CC  e.  _V
32, 2fpm 6893 . . . . . 6  |-  ( F : CC --> CC  ->  F  e.  ( CC  ^pm  CC ) )
41, 3syl 14 . . . . 5  |-  ( ph  ->  F  e.  ( CC 
^pm  CC ) )
5 dvfcnpm 15484 . . . . 5  |-  ( F  e.  ( CC  ^pm  CC )  ->  ( CC  _D  F ) : dom  ( CC  _D  F
) --> CC )
64, 5syl 14 . . . 4  |-  ( ph  ->  ( CC  _D  F
) : dom  ( CC  _D  F ) --> CC )
7 ssidd 3249 . . . . . . 7  |-  ( ph  ->  CC  C_  CC )
87, 1, 7dvbss 15479 . . . . . 6  |-  ( ph  ->  dom  ( CC  _D  F )  C_  CC )
9 reldvg 15473 . . . . . . . . 9  |-  ( ( CC  C_  CC  /\  F  e.  ( CC  ^pm  CC ) )  ->  Rel  ( CC  _D  F
) )
107, 4, 9syl2anc 411 . . . . . . . 8  |-  ( ph  ->  Rel  ( CC  _D  F ) )
1110adantr 276 . . . . . . 7  |-  ( (
ph  /\  x  e.  CC )  ->  Rel  ( CC  _D  F ) )
12 simpr 110 . . . . . . . . 9  |-  ( (
ph  /\  x  e.  CC )  ->  x  e.  CC )
13 eqid 2231 . . . . . . . . . . 11  |-  ( MetOpen `  ( abs  o.  -  )
)  =  ( MetOpen `  ( abs  o.  -  )
)
1413cntoptop 15327 . . . . . . . . . 10  |-  ( MetOpen `  ( abs  o.  -  )
)  e.  Top
1513cntoptopon 15326 . . . . . . . . . . . 12  |-  ( MetOpen `  ( abs  o.  -  )
)  e.  (TopOn `  CC )
1615toponunii 14811 . . . . . . . . . . 11  |-  CC  =  U. ( MetOpen `  ( abs  o. 
-  ) )
1716ntrtop 14922 . . . . . . . . . 10  |-  ( (
MetOpen `  ( abs  o.  -  ) )  e. 
Top  ->  ( ( int `  ( MetOpen `  ( abs  o. 
-  ) ) ) `
 CC )  =  CC )
1814, 17ax-mp 5 . . . . . . . . 9  |-  ( ( int `  ( MetOpen `  ( abs  o.  -  )
) ) `  CC )  =  CC
1912, 18eleqtrrdi 2325 . . . . . . . 8  |-  ( (
ph  /\  x  e.  CC )  ->  x  e.  ( ( int `  ( MetOpen
`  ( abs  o.  -  ) ) ) `
 CC ) )
20 limcresi 15460 . . . . . . . . . 10  |-  ( ( z  e.  CC  |->  B ) lim CC  x ) 
C_  ( ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x } ) lim CC  x )
21 dvidlem.3 . . . . . . . . . . . 12  |-  B  e.  CC
22 ssidd 3249 . . . . . . . . . . . 12  |-  ( (
ph  /\  x  e.  CC )  ->  CC  C_  CC )
23 cncfmptc 15390 . . . . . . . . . . . 12  |-  ( ( B  e.  CC  /\  CC  C_  CC  /\  CC  C_  CC )  ->  (
z  e.  CC  |->  B )  e.  ( CC
-cn-> CC ) )
2421, 22, 22, 23mp3an2i 1379 . . . . . . . . . . 11  |-  ( (
ph  /\  x  e.  CC )  ->  ( z  e.  CC  |->  B )  e.  ( CC -cn-> CC ) )
25 eqidd 2232 . . . . . . . . . . 11  |-  ( z  =  x  ->  B  =  B )
2624, 12, 25cnmptlimc 15468 . . . . . . . . . 10  |-  ( (
ph  /\  x  e.  CC )  ->  B  e.  ( ( z  e.  CC  |->  B ) lim CC  x ) )
2720, 26sselid 3226 . . . . . . . . 9  |-  ( (
ph  /\  x  e.  CC )  ->  B  e.  ( ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x }
) lim CC  x )
)
28 breq1 4096 . . . . . . . . . . . . . 14  |-  ( w  =  z  ->  (
w #  x  <->  z #  x
) )
2928elrab 2963 . . . . . . . . . . . . 13  |-  ( z  e.  { w  e.  CC  |  w #  x } 
<->  ( z  e.  CC  /\  z #  x ) )
30 dvidlemap.2 . . . . . . . . . . . . . . 15  |-  ( (
ph  /\  ( x  e.  CC  /\  z  e.  CC  /\  z #  x ) )  ->  (
( ( F `  z )  -  ( F `  x )
)  /  ( z  -  x ) )  =  B )
31303exp2 1252 . . . . . . . . . . . . . 14  |-  ( ph  ->  ( x  e.  CC  ->  ( z  e.  CC  ->  ( z #  x  -> 
( ( ( F `
 z )  -  ( F `  x ) )  /  ( z  -  x ) )  =  B ) ) ) )
3231imp43 355 . . . . . . . . . . . . 13  |-  ( ( ( ph  /\  x  e.  CC )  /\  (
z  e.  CC  /\  z #  x ) )  -> 
( ( ( F `
 z )  -  ( F `  x ) )  /  ( z  -  x ) )  =  B )
3329, 32sylan2b 287 . . . . . . . . . . . 12  |-  ( ( ( ph  /\  x  e.  CC )  /\  z  e.  { w  e.  CC  |  w #  x }
)  ->  ( (
( F `  z
)  -  ( F `
 x ) )  /  ( z  -  x ) )  =  B )
3433mpteq2dva 4184 . . . . . . . . . . 11  |-  ( (
ph  /\  x  e.  CC )  ->  ( z  e.  { w  e.  CC  |  w #  x }  |->  ( ( ( F `  z )  -  ( F `  x ) )  / 
( z  -  x
) ) )  =  ( z  e.  {
w  e.  CC  |  w #  x }  |->  B ) )
35 ssrab2 3313 . . . . . . . . . . . 12  |-  { w  e.  CC  |  w #  x }  C_  CC
36 resmpt 5067 . . . . . . . . . . . 12  |-  ( { w  e.  CC  |  w #  x }  C_  CC  ->  ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x }
)  =  ( z  e.  { w  e.  CC  |  w #  x }  |->  B ) )
3735, 36ax-mp 5 . . . . . . . . . . 11  |-  ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x } )  =  ( z  e.  { w  e.  CC  |  w #  x }  |->  B )
3834, 37eqtr4di 2282 . . . . . . . . . 10  |-  ( (
ph  /\  x  e.  CC )  ->  ( z  e.  { w  e.  CC  |  w #  x }  |->  ( ( ( F `  z )  -  ( F `  x ) )  / 
( z  -  x
) ) )  =  ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x }
) )
3938oveq1d 6043 . . . . . . . . 9  |-  ( (
ph  /\  x  e.  CC )  ->  ( ( z  e.  { w  e.  CC  |  w #  x }  |->  ( ( ( F `  z )  -  ( F `  x ) )  / 
( z  -  x
) ) ) lim CC  x )  =  ( ( ( z  e.  CC  |->  B )  |`  { w  e.  CC  |  w #  x }
) lim CC  x )
)
4027, 39eleqtrrd 2311 . . . . . . . 8  |-  ( (
ph  /\  x  e.  CC )  ->  B  e.  ( ( z  e. 
{ w  e.  CC  |  w #  x }  |->  ( ( ( F `
 z )  -  ( F `  x ) )  /  ( z  -  x ) ) ) lim CC  x ) )
4115toponrestid 14815 . . . . . . . . 9  |-  ( MetOpen `  ( abs  o.  -  )
)  =  ( (
MetOpen `  ( abs  o.  -  ) )t  CC )
42 eqid 2231 . . . . . . . . 9  |-  ( z  e.  { w  e.  CC  |  w #  x }  |->  ( ( ( F `  z )  -  ( F `  x ) )  / 
( z  -  x
) ) )  =  ( z  e.  {
w  e.  CC  |  w #  x }  |->  ( ( ( F `  z
)  -  ( F `
 x ) )  /  ( z  -  x ) ) )
431adantr 276 . . . . . . . . 9  |-  ( (
ph  /\  x  e.  CC )  ->  F : CC
--> CC )
4441, 13, 42, 22, 43, 22eldvap 15476 . . . . . . . 8  |-  ( (
ph  /\  x  e.  CC )  ->  ( x ( CC  _D  F
) B  <->  ( x  e.  ( ( int `  ( MetOpen
`  ( abs  o.  -  ) ) ) `
 CC )  /\  B  e.  ( (
z  e.  { w  e.  CC  |  w #  x }  |->  ( ( ( F `  z )  -  ( F `  x ) )  / 
( z  -  x
) ) ) lim CC  x ) ) ) )
4519, 40, 44mpbir2and 953 . . . . . . 7  |-  ( (
ph  /\  x  e.  CC )  ->  x ( CC  _D  F ) B )
46 releldm 4973 . . . . . . 7  |-  ( ( Rel  ( CC  _D  F )  /\  x
( CC  _D  F
) B )  ->  x  e.  dom  ( CC 
_D  F ) )
4711, 45, 46syl2anc 411 . . . . . 6  |-  ( (
ph  /\  x  e.  CC )  ->  x  e. 
dom  ( CC  _D  F ) )
488, 47eqelssd 3247 . . . . 5  |-  ( ph  ->  dom  ( CC  _D  F )  =  CC )
4948feq2d 5477 . . . 4  |-  ( ph  ->  ( ( CC  _D  F ) : dom  ( CC  _D  F
) --> CC  <->  ( CC  _D  F ) : CC --> CC ) )
506, 49mpbid 147 . . 3  |-  ( ph  ->  ( CC  _D  F
) : CC --> CC )
5150ffnd 5490 . 2  |-  ( ph  ->  ( CC  _D  F
)  Fn  CC )
52 fnconstg 5543 . . 3  |-  ( B  e.  CC  ->  ( CC  X.  { B }
)  Fn  CC )
5321, 52mp1i 10 . 2  |-  ( ph  ->  ( CC  X.  { B } )  Fn  CC )
546adantr 276 . . . . . 6  |-  ( (
ph  /\  x  e.  CC )  ->  ( CC 
_D  F ) : dom  ( CC  _D  F ) --> CC )
5554ffund 5493 . . . . 5  |-  ( (
ph  /\  x  e.  CC )  ->  Fun  ( CC  _D  F ) )
56 funbrfvb 5695 . . . . 5  |-  ( ( Fun  ( CC  _D  F )  /\  x  e.  dom  ( CC  _D  F ) )  -> 
( ( ( CC 
_D  F ) `  x )  =  B  <-> 
x ( CC  _D  F ) B ) )
5755, 47, 56syl2anc 411 . . . 4  |-  ( (
ph  /\  x  e.  CC )  ->  ( ( ( CC  _D  F
) `  x )  =  B  <->  x ( CC 
_D  F ) B ) )
5845, 57mpbird 167 . . 3  |-  ( (
ph  /\  x  e.  CC )  ->  ( ( CC  _D  F ) `
 x )  =  B )
5921a1i 9 . . . 4  |-  ( ph  ->  B  e.  CC )
60 fvconst2g 5876 . . . 4  |-  ( ( B  e.  CC  /\  x  e.  CC )  ->  ( ( CC  X.  { B } ) `  x )  =  B )
6159, 60sylan 283 . . 3  |-  ( (
ph  /\  x  e.  CC )  ->  ( ( CC  X.  { B } ) `  x
)  =  B )
6258, 61eqtr4d 2267 . 2  |-  ( (
ph  /\  x  e.  CC )  ->  ( ( CC  _D  F ) `
 x )  =  ( ( CC  X.  { B } ) `  x ) )
6351, 53, 62eqfnfvd 5756 1  |-  ( ph  ->  ( CC  _D  F
)  =  ( CC 
X.  { B }
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    /\ w3a 1005    = wceq 1398    e. wcel 2202   {crab 2515    C_ wss 3201   {csn 3673   class class class wbr 4093    |-> cmpt 4155    X. cxp 4729   dom cdm 4731    |` cres 4733    o. ccom 4735   Rel wrel 4736   Fun wfun 5327    Fn wfn 5328   -->wf 5329   ` cfv 5333  (class class class)co 6028    ^pm cpm 6861   CCcc 8073    - cmin 8392   # cap 8803    / cdiv 8894   abscabs 11620   MetOpencmopn 14620   Topctop 14791   intcnt 14887   -cn->ccncf 15364   lim CC climc 15448    _D cdv 15449
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 2204  ax-14 2205  ax-ext 2213  ax-coll 4209  ax-sep 4212  ax-nul 4220  ax-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-iinf 4692  ax-cnex 8166  ax-resscn 8167  ax-1cn 8168  ax-1re 8169  ax-icn 8170  ax-addcl 8171  ax-addrcl 8172  ax-mulcl 8173  ax-mulrcl 8174  ax-addcom 8175  ax-mulcom 8176  ax-addass 8177  ax-mulass 8178  ax-distr 8179  ax-i2m1 8180  ax-0lt1 8181  ax-1rid 8182  ax-0id 8183  ax-rnegex 8184  ax-precex 8185  ax-cnre 8186  ax-pre-ltirr 8187  ax-pre-ltwlin 8188  ax-pre-lttrn 8189  ax-pre-apti 8190  ax-pre-ltadd 8191  ax-pre-mulgt0 8192  ax-pre-mulext 8193  ax-arch 8194  ax-caucvg 8195
This theorem depends on definitions:  df-bi 117  df-stab 839  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-nel 2499  df-ral 2516  df-rex 2517  df-reu 2518  df-rmo 2519  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-nul 3497  df-if 3608  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-iun 3977  df-br 4094  df-opab 4156  df-mpt 4157  df-tr 4193  df-id 4396  df-po 4399  df-iso 4400  df-iord 4469  df-on 4471  df-ilim 4472  df-suc 4474  df-iom 4695  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-isom 5342  df-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-recs 6514  df-frec 6600  df-map 6862  df-pm 6863  df-sup 7226  df-inf 7227  df-pnf 8258  df-mnf 8259  df-xr 8260  df-ltxr 8261  df-le 8262  df-sub 8394  df-neg 8395  df-reap 8797  df-ap 8804  df-div 8895  df-inn 9186  df-2 9244  df-3 9245  df-4 9246  df-n0 9445  df-z 9524  df-uz 9800  df-q 9898  df-rp 9933  df-xneg 10051  df-xadd 10052  df-seqfrec 10756  df-exp 10847  df-cj 11465  df-re 11466  df-im 11467  df-rsqrt 11621  df-abs 11622  df-rest 13387  df-topgen 13406  df-psmet 14622  df-xmet 14623  df-met 14624  df-bl 14625  df-mopn 14626  df-top 14792  df-topon 14805  df-bases 14837  df-ntr 14890  df-cn 14982  df-cnp 14983  df-cncf 15365  df-limced 15450  df-dvap 15451
This theorem is referenced by:  dvconst  15488  dvid  15489
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