Theorem climcncf 15575

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 15568	. . . . 5 |- ( F e. ( A -cn-> B ) -> F : A --> B )
6	4, 5	syl 14	. . . 4 |- ( ph -> F : A --> B )
7	6	ffvelcdmda 5817	. . 3 |- ( ( ph /\ z e. A ) -> ( F ` z ) e. B )
8		cncfrss2 15567	. . . . 5 |- ( F e. ( A -cn-> B ) -> B C_ CC )
9	4, 8	syl 14	. . . 4 |- ( ph -> B C_ CC )
10	9	sselda 3242	. . 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 9603	. . . . . 6 |- ZZ e. _V
15		uzssz 9892	. . . . . 6 |- ( ZZ>= ` M ) C_ ZZ
16	14, 15	ssexi 4253	. . . . 5 |- ( ZZ>= ` M ) e. _V
17	1, 16	eqeltri 2307	. . . 4 |- Z e. _V
18		fex 5920	. . . 4 |- ( ( G : Z --> A /\ Z e. _V ) -> G e. _V )
19	13, 17, 18	sylancl 413	. . 3 |- ( ph -> G e. _V )
20		coexg 5312	. . 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 15569	. . . . 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 5817	. 2 |- ( ( ph /\ k e. Z ) -> ( G ` k ) e. A )
27		fvco3 5753	. . 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 12018	1 |- ( ph -> ( F o. G ) ~~> ( F ` D ) )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2205   A.wral 2522   E.wrex 2523   _Vcvv 2815   C_ wss 3214   class class class wbr 4114   o. ccom 4758   -->wf 5353   ` cfv 5357  (class class class)co 6058   CCcc 8141   < clt 8324   - cmin 8460   ZZcz 9594   ZZ>=cuz 9871   RR+crp 10004   abscabs 11707   ~~> cli 11988   -cn->ccncf 15561

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 2207  ax-14 2208  ax-ext 2216  ax-coll 4230  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-setind 4664  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-mulrcl 8242  ax-addcom 8243  ax-mulcom 8244  ax-addass 8245  ax-mulass 8246  ax-distr 8247  ax-i2m1 8248  ax-0lt1 8249  ax-1rid 8250  ax-0id 8251  ax-rnegex 8252  ax-precex 8253  ax-cnre 8254  ax-pre-ltirr 8255  ax-pre-ltwlin 8256  ax-pre-lttrn 8257  ax-pre-apti 8258  ax-pre-ltadd 8259  ax-pre-mulgt0 8260  ax-pre-mulext 8261

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 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-nel 2510  df-ral 2527  df-rex 2528  df-reu 2529  df-rmo 2530  df-rab 2531  df-v 2817  df-sbc 3046  df-csb 3142  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-if 3625  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-iun 3998  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-po 4422  df-iso 4423  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-f1 5362  df-fo 5363  df-f1o 5364  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-map 6897  df-pnf 8326  df-mnf 8327  df-xr 8328  df-ltxr 8329  df-le 8330  df-sub 8462  df-neg 8463  df-reap 8866  df-ap 8873  df-div 8964  df-inn 9255  df-2 9313  df-n0 9514  df-z 9595  df-uz 9872  df-cj 11552  df-re 11553  df-im 11554  df-rsqrt 11708  df-abs 11709  df-clim 11989  df-cncf 15562

This theorem is referenced by: (None)