Theorem metcnpi 15204

Description: Epsilon-delta property of a continuous metric space function, with function arguments as in metcnp 15201. (Contributed by NM, 17-Dec-2007.) (Revised by Mario Carneiro, 13-Nov-2013.)

Hypotheses

Ref	Expression
metcn.2	|- J = ( MetOpen ` C )
metcn.4	|- K = ( MetOpen ` D )

Assertion

Ref	Expression
metcnpi	|- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ ( F e. ( ( J CnP K ) ` P ) /\ A e. RR+ ) ) -> E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) )

Distinct variable groups:   x, y, F   x, J, y   x, K, y   x, X, y   x, Y, y   x, A, y   x, C, y   x, D, y   x, P, y

Proof of Theorem metcnpi

Dummy variable z is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpr 110	. . . 4 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> F e. ( ( J CnP K ) ` P ) )
2		simpll 527	. . . . 5 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> C e. ( *Met ` X ) )
3		simplr 528	. . . . 5 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> D e. ( *Met ` Y ) )
4		metcn.2	. . . . . . . . . 10 |- J = ( MetOpen ` C )
5	4	mopntopon 15132	. . . . . . . . 9 |- ( C e. ( *Met ` X ) -> J e. (TopOn ` X ) )
6	5	ad2antrr 488	. . . . . . . 8 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> J e. (TopOn ` X ) )
7	4	mopnuni 15134	. . . . . . . . . 10 |- ( C e. ( *Met ` X ) -> X = U. J )
8	7	ad2antrr 488	. . . . . . . . 9 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> X = U. J )
9	8	fveq2d 5633	. . . . . . . 8 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> (TopOn ` X ) = (TopOn ` U. J ) )
10	6, 9	eleqtrd 2308	. . . . . . 7 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> J e. (TopOn ` U. J ) )
11		metcn.4	. . . . . . . . 9 |- K = ( MetOpen ` D )
12	11	mopntopon 15132	. . . . . . . 8 |- ( D e. ( *Met ` Y ) -> K e. (TopOn ` Y ) )
13		topontop 14703	. . . . . . . 8 |- ( K e. (TopOn ` Y ) -> K e. Top )
14	3, 12, 13	3syl 17	. . . . . . 7 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> K e. Top )
15		cnprcl2k 14895	. . . . . . 7 |- ( ( J e. (TopOn ` U. J ) /\ K e. Top /\ F e. ( ( J CnP K ) ` P ) ) -> P e. U. J )
16	10, 14, 1, 15	syl3anc 1271	. . . . . 6 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> P e. U. J )
17	16, 8	eleqtrrd 2309	. . . . 5 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> P e. X )
18	4, 11	metcnp 15201	. . . . 5 |- ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) /\ P e. X ) -> ( F e. ( ( J CnP K ) ` P ) <-> ( F : X --> Y /\ A. z e. RR+ E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) ) ) )
19	2, 3, 17, 18	syl3anc 1271	. . . 4 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> ( F e. ( ( J CnP K ) ` P ) <-> ( F : X --> Y /\ A. z e. RR+ E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) ) ) )
20	1, 19	mpbid 147	. . 3 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> ( F : X --> Y /\ A. z e. RR+ E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) ) )
21		breq2 4087	. . . . . 6 |- ( z = A -> ( ( ( F ` P ) D ( F ` y ) ) < z <-> ( ( F ` P ) D ( F ` y ) ) < A ) )
22	21	imbi2d 230	. . . . 5 |- ( z = A -> ( ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) <-> ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) ) )
23	22	rexralbidv 2556	. . . 4 |- ( z = A -> ( E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) <-> E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) ) )
24	23	rspccv 2904	. . 3 |- ( A. z e. RR+ E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < z ) -> ( A e. RR+ -> E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) ) )
25	20, 24	simpl2im 386	. 2 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ F e. ( ( J CnP K ) ` P ) ) -> ( A e. RR+ -> E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) ) )
26	25	impr 379	1 |- ( ( ( C e. ( *Met ` X ) /\ D e. ( *Met ` Y ) ) /\ ( F e. ( ( J CnP K ) ` P ) /\ A e. RR+ ) ) -> E. x e. RR+ A. y e. X ( ( P C y ) < x -> ( ( F ` P ) D ( F ` y ) ) < A ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1395   e. wcel 2200   A.wral 2508   E.wrex 2509   U.cuni 3888   class class class wbr 4083   -->wf 5314   ` cfv 5318  (class class class)co 6007   < clt 8192   RR+crp 9861   *Metcxmet 14515   MetOpencmopn 14520   Topctop 14686  TopOnctopon 14699   CnP ccnp 14875

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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4199  ax-sep 4202  ax-nul 4210  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-iinf 4680  ax-cnex 8101  ax-resscn 8102  ax-1cn 8103  ax-1re 8104  ax-icn 8105  ax-addcl 8106  ax-addrcl 8107  ax-mulcl 8108  ax-mulrcl 8109  ax-addcom 8110  ax-mulcom 8111  ax-addass 8112  ax-mulass 8113  ax-distr 8114  ax-i2m1 8115  ax-0lt1 8116  ax-1rid 8117  ax-0id 8118  ax-rnegex 8119  ax-precex 8120  ax-cnre 8121  ax-pre-ltirr 8122  ax-pre-ltwlin 8123  ax-pre-lttrn 8124  ax-pre-apti 8125  ax-pre-ltadd 8126  ax-pre-mulgt0 8127  ax-pre-mulext 8128  ax-arch 8129  ax-caucvg 8130

This theorem depends on definitions:  df-bi 117  df-stab 836  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rmo 2516  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-int 3924  df-iun 3967  df-br 4084  df-opab 4146  df-mpt 4147  df-tr 4183  df-id 4384  df-po 4387  df-iso 4388  df-iord 4457  df-on 4459  df-ilim 4460  df-suc 4462  df-iom 4683  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-rn 4730  df-res 4731  df-ima 4732  df-iota 5278  df-fun 5320  df-fn 5321  df-f 5322  df-f1 5323  df-fo 5324  df-f1o 5325  df-fv 5326  df-isom 5327  df-riota 5960  df-ov 6010  df-oprab 6011  df-mpo 6012  df-1st 6292  df-2nd 6293  df-recs 6457  df-frec 6543  df-map 6805  df-sup 7162  df-inf 7163  df-pnf 8194  df-mnf 8195  df-xr 8196  df-ltxr 8197  df-le 8198  df-sub 8330  df-neg 8331  df-reap 8733  df-ap 8740  df-div 8831  df-inn 9122  df-2 9180  df-3 9181  df-4 9182  df-n0 9381  df-z 9458  df-uz 9734  df-q 9827  df-rp 9862  df-xneg 9980  df-xadd 9981  df-seqfrec 10682  df-exp 10773  df-cj 11368  df-re 11369  df-im 11370  df-rsqrt 11524  df-abs 11525  df-topgen 13308  df-psmet 14522  df-xmet 14523  df-bl 14525  df-mopn 14526  df-top 14687  df-topon 14700  df-bases 14732  df-cnp 14878

This theorem is referenced by: (None)