ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  metequiv2 Unicode version
Theorem metequiv2 15597
Description: If there is a sequence of radii approaching zero for which the balls of both metrics coincide, then the generated topologies are equivalent. (Contributed by Mario Carneiro, 26-Aug-2015.)
Hypotheses
Ref Expression
metequiv.3 |- J = ( MetOpen ` C )
metequiv.4 |- K = ( MetOpen ` D )
Assertion
Ref Expression
metequiv2 |- ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) -> ( A. x e. X A. r e. RR+ E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> J = K ) )
Distinct variable groups:   s, r, x, C   J, r, s, x   K, r, s, x   D, r, s, x   X, r, s, x
Proof of Theorem metequiv2
StepHypRef Expression
1 simprrr 546 . . . . . . . . . . 11 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) )
2 simplll 539 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> C e. ( *Met ` X ) )
3 simplr 533 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> x e. X )
4 simprlr 544 . . . . . . . . . . . . 13 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> s e. RR+ )
54rpxrd 10098 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> s e. RR* )
6 simprll 543 . . . . . . . . . . . . 13 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> r e. RR+ )
76rpxrd 10098 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> r e. RR* )
8 simprrl 545 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> s <_ r )
9 ssbl 15527 . . . . . . . . . . . 12 |- ( ( ( C e. ( *Met ` X ) /\ x e. X ) /\ ( s e. RR* /\ r e. RR* ) /\ s <_ r ) -> ( x ( ball ` C ) s ) C_ ( x ( ball ` C ) r ) )
102, 3, 5, 7, 8, 9syl221anc 1289 . . . . . . . . . . 11 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( x ( ball ` C ) s ) C_ ( x ( ball ` C ) r ) )
111, 10eqsstrrd 3285 . . . . . . . . . 10 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) )
12 simpllr 540 . . . . . . . . . . . 12 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> D e. ( *Met ` X ) )
13 ssbl 15527 . . . . . . . . . . . 12 |- ( ( ( D e. ( *Met ` X ) /\ x e. X ) /\ ( s e. RR* /\ r e. RR* ) /\ s <_ r ) -> ( x ( ball ` D ) s ) C_ ( x ( ball ` D ) r ) )
1412, 3, 5, 7, 8, 13syl221anc 1289 . . . . . . . . . . 11 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( x ( ball ` D ) s ) C_ ( x ( ball ` D ) r ) )
151, 14eqsstrd 3284 . . . . . . . . . 10 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) )
1611, 15jca 306 . . . . . . . . 9 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( ( r e. RR+ /\ s e. RR+ ) /\ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) ) ) -> ( ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) )
1716expr 375 . . . . . . . 8 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ ( r e. RR+ /\ s e. RR+ ) ) -> ( ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> ( ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
1817anassrs 404 . . . . . . 7 |- ( ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ r e. RR+ ) /\ s e. RR+ ) -> ( ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> ( ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
1918reximdva 2652 . . . . . 6 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ r e. RR+ ) -> ( E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> E. s e. RR+ ( ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
20 r19.40 2705 . . . . . 6 |- ( E. s e. RR+ ( ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) -> ( E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) )
2119, 20syl6 33 . . . . 5 |- ( ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) /\ r e. RR+ ) -> ( E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> ( E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
2221ralimdva 2617 . . . 4 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) -> ( A. r e. RR+ E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> A. r e. RR+ ( E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
23 r19.26 2677 . . . 4 |- ( A. r e. RR+ ( E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) <-> ( A. r e. RR+ E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ A. r e. RR+ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) )
2422, 23imbitrdi 161 . . 3 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) /\ x e. X ) -> ( A. r e. RR+ E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> ( A. r e. RR+ E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ A. r e. RR+ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
2524ralimdva 2617 . 2 |- ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) -> ( A. x e. X A. r e. RR+ E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> A. x e. X ( A. r e. RR+ E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ A. r e. RR+ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
26 metequiv.3 . . 3 |- J = ( MetOpen ` C )
27 metequiv.4 . . 3 |- K = ( MetOpen ` D )
2826, 27metequiv 15596 . 2 |- ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) -> ( J = K <-> A. x e. X ( A. r e. RR+ E. s e. RR+ ( x ( ball ` D ) s ) C_ ( x ( ball ` C ) r ) /\ A. r e. RR+ E. s e. RR+ ( x ( ball ` C ) s ) C_ ( x ( ball ` D ) r ) ) ) )
2925, 28sylibrd 169 1 |- ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` X ) ) -> ( A. x e. X A. r e. RR+ E. s e. RR+ ( s <_ r /\ ( x ( ball ` C ) s ) = ( x ( ball ` D ) s ) ) -> J = K ) )
Colors of variables:    wff set class
This proof depends on syntax axioms:   -> wi 4   /\ wa 104   = wceq 1402   e. wcel 2209   A.wral 2528   E.wrex 2529   C_ wss 3220   class class class wbr 4130   ` cfv 5377  (class class class)co 6085   RR*cxr 8359   <_ cle 8361   RR+crp 10054   *Metcxmet 14873   ballcbl 14875   MetOpencmopn 14878
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-coll 4246  ax-sep 4249  ax-nul 4259  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-iinf 4735  ax-cnex 8270  ax-resscn 8271  ax-1cn 8272  ax-1re 8273  ax-icn 8274  ax-addcl 8275  ax-addrcl 8276  ax-mulcl 8277  ax-mulrcl 8278  ax-addcom 8279  ax-mulcom 8280  ax-addass 8281  ax-mulass 8282  ax-distr 8283  ax-i2m1 8284  ax-0lt1 8285  ax-1rid 8286  ax-0id 8287  ax-rnegex 8288  ax-precex 8289  ax-cnre 8290  ax-pre-ltirr 8291  ax-pre-ltwlin 8292  ax-pre-lttrn 8293  ax-pre-apti 8294  ax-pre-ltadd 8295  ax-pre-mulgt0 8296  ax-pre-mulext 8297  ax-arch 8298  ax-caucvg 8299
This proof depends on definitions:  df-bi 117  df-stab 843  df-dc 847  df-3or 1010  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-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-if 3639  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-tr 4230  df-id 4438  df-po 4441  df-iso 4442  df-iord 4511  df-on 4513  df-ilim 4514  df-suc 4516  df-iom 4738  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-isom 5386  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-recs 6576  df-frec 6662  df-map 6924  df-sup 7324  df-inf 7325  df-pnf 8362  df-mnf 8363  df-xr 8364  df-ltxr 8365  df-le 8366  df-sub 8499  df-neg 8500  df-reap 8903  df-ap 8910  df-div 9003  df-inn 9305  df-2 9363  df-3 9364  df-4 9365  df-n0 9564  df-z 9645  df-uz 9922  df-q 10020  df-rp 10055  df-xneg 10174  df-xadd 10175  df-seqfrec 10885  df-exp 10976  df-cj 11607  df-re 11608  df-im 11609  df-rsqrt 11764  df-abs 11765  df-topgen 13614  df-psmet 14880  df-xmet 14881  df-bl 14883  df-mopn 14884  df-top 15099  df-bases 15144
This theorem is used by:  bdmopn  15605
  Copyright terms: Public domain W3C validator