Theorem climcncf 15395

Description: Image of a limit under a continuous map. (Contributed by Mario Carneiro, 7-Apr-2015.)

Hypotheses

Ref	Expression
climcncf.1	|- Z = ( ZZ>= ` M )
climcncf.2	|- ( ph -> M e. ZZ )
climcncf.4	|- ( ph -> F e. ( A -cn-> B ) )
climcncf.5	|- ( ph -> G : Z --> A )
climcncf.6	|- ( ph -> G ~~> D )
climcncf.7	|- ( ph -> D e. A )

Assertion

Ref	Expression
climcncf	|- ( ph -> ( F o. G ) ~~> ( F ` D ) )

Proof of Theorem climcncf

Dummy variables y z x k are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		climcncf.1	. 2 |- Z = ( ZZ>= ` M )
2		climcncf.2	. 2 |- ( ph -> M e. ZZ )
3		climcncf.7	. 2 |- ( ph -> D e. A )
4		climcncf.4	. . . . 5 |- ( ph -> F e. ( A -cn-> B ) )
5		cncff 15388	. . . . 5 |- ( F e. ( A -cn-> B ) -> F : A --> B )
6	4, 5	syl 14	. . . 4 |- ( ph -> F : A --> B )
7	6	ffvelcdmda 5790	. . 3 |- ( ( ph /\ z e. A ) -> ( F ` z ) e. B )
8		cncfrss2 15387	. . . . 5 |- ( F e. ( A -cn-> B ) -> B C_ CC )
9	4, 8	syl 14	. . . 4 |- ( ph -> B C_ CC )
10	9	sselda 3228	. . 3 |- ( ( ph /\ ( F ` z ) e. B ) -> ( F ` z ) e. CC )
11	7, 10	syldan 282	. 2 |- ( ( ph /\ z e. A ) -> ( F ` z ) e. CC )
12		climcncf.6	. 2 |- ( ph -> G ~~> D )
13		climcncf.5	. . . 4 |- ( ph -> G : Z --> A )
14		zex 9549	. . . . . 6 |- ZZ e. _V
15		uzssz 9837	. . . . . 6 |- ( ZZ>= ` M ) C_ ZZ
16	14, 15	ssexi 4232	. . . . 5 |- ( ZZ>= ` M ) e. _V
17	1, 16	eqeltri 2304	. . . 4 |- Z e. _V
18		fex 5893	. . . 4 |- ( ( G : Z --> A /\ Z e. _V ) -> G e. _V )
19	13, 17, 18	sylancl 413	. . 3 |- ( ph -> G e. _V )
20		coexg 5288	. . 3 |- ( ( F e. ( A -cn-> B ) /\ G e. _V ) -> ( F o. G ) e. _V )
21	4, 19, 20	syl2anc 411	. 2 |- ( ph -> ( F o. G ) e. _V )
22		cncfi 15389	. . . . 5 |- ( ( F e. ( A -cn-> B ) /\ D e. A /\ x e. RR+ ) -> E. y e. RR+ A. z e. A ( ( abs ` ( z - D ) ) < y -> ( abs ` ( ( F ` z ) - ( F ` D ) ) ) < x ) )
23	22	3expia 1232	. . . 4 |- ( ( F e. ( A -cn-> B ) /\ D e. A ) -> ( x e. RR+ -> E. y e. RR+ A. z e. A ( ( abs ` ( z - D ) ) < y -> ( abs ` ( ( F ` z ) - ( F ` D ) ) ) < x ) ) )
24	4, 3, 23	syl2anc 411	. . 3 |- ( ph -> ( x e. RR+ -> E. y e. RR+ A. z e. A ( ( abs ` ( z - D ) ) < y -> ( abs ` ( ( F ` z ) - ( F ` D ) ) ) < x ) ) )
25	24	imp 124	. 2 |- ( ( ph /\ x e. RR+ ) -> E. y e. RR+ A. z e. A ( ( abs ` ( z - D ) ) < y -> ( abs ` ( ( F ` z ) - ( F ` D ) ) ) < x ) )
26	13	ffvelcdmda 5790	. 2 |- ( ( ph /\ k e. Z ) -> ( G ` k ) e. A )
27		fvco3 5726	. . 3 |- ( ( G : Z --> A /\ k e. Z ) -> ( ( F o. G ) ` k ) = ( F ` ( G ` k ) ) )
28	13, 27	sylan 283	. 2 |- ( ( ph /\ k e. Z ) -> ( ( F o. G ) ` k ) = ( F ` ( G ` k ) ) )
29	1, 2, 3, 11, 12, 21, 25, 26, 28	climcn1 11948	1 |- ( ph -> ( F o. G ) ~~> ( F ` D ) )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2202   A.wral 2511   E.wrex 2512   _Vcvv 2803   C_ wss 3201   class class class wbr 4093   o. ccom 4735   -->wf 5329   ` cfv 5333  (class class class)co 6028   CCcc 8090   < clt 8273   - cmin 8409   ZZcz 9540   ZZ>=cuz 9816   RR+crp 9949   abscabs 11637   ~~> cli 11918   -cn->ccncf 15381

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-pow 4270  ax-pr 4305  ax-un 4536  ax-setind 4641  ax-cnex 8183  ax-resscn 8184  ax-1cn 8185  ax-1re 8186  ax-icn 8187  ax-addcl 8188  ax-addrcl 8189  ax-mulcl 8190  ax-mulrcl 8191  ax-addcom 8192  ax-mulcom 8193  ax-addass 8194  ax-mulass 8195  ax-distr 8196  ax-i2m1 8197  ax-0lt1 8198  ax-1rid 8199  ax-0id 8200  ax-rnegex 8201  ax-precex 8202  ax-cnre 8203  ax-pre-ltirr 8204  ax-pre-ltwlin 8205  ax-pre-lttrn 8206  ax-pre-apti 8207  ax-pre-ltadd 8208  ax-pre-mulgt0 8209  ax-pre-mulext 8210

This theorem depends on definitions:  df-bi 117  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-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-id 4396  df-po 4399  df-iso 4400  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-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-map 6862  df-pnf 8275  df-mnf 8276  df-xr 8277  df-ltxr 8278  df-le 8279  df-sub 8411  df-neg 8412  df-reap 8814  df-ap 8821  df-div 8912  df-inn 9203  df-2 9261  df-n0 9462  df-z 9541  df-uz 9817  df-cj 11482  df-re 11483  df-im 11484  df-rsqrt 11638  df-abs 11639  df-clim 11919  df-cncf 15382

This theorem is referenced by: (None)