Theorem ioccncflimc 38771

Description: Limit at the upper bound, of a continuous function defined on a left open right closed interval. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

Hypotheses

Ref	Expression
ioccncflimc.a	⊢ (𝜑 → 𝐴 ∈ ℝ*)
ioccncflimc.b	⊢ (𝜑 → 𝐵 ∈ ℝ)
ioccncflimc.altb	⊢ (𝜑 → 𝐴 < 𝐵)
ioccncflimc.f	⊢ (𝜑 → 𝐹 ∈ ((𝐴(,]𝐵)–cn→ℂ))

Assertion

Ref	Expression
ioccncflimc	⊢ (𝜑 → (𝐹‘𝐵) ∈ ((𝐹 ↾ (𝐴(,)𝐵)) limℂ 𝐵))

Proof of Theorem ioccncflimc

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		ioccncflimc.f	. . 3 ⊢ (𝜑 → 𝐹 ∈ ((𝐴(,]𝐵)–cn→ℂ))
2		ioccncflimc.a	. . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ*)
3		ioccncflimc.b	. . . . 5 ⊢ (𝜑 → 𝐵 ∈ ℝ)
4	3	rexrd 9968	. . . 4 ⊢ (𝜑 → 𝐵 ∈ ℝ*)
5		ioccncflimc.altb	. . . 4 ⊢ (𝜑 → 𝐴 < 𝐵)
6	3	leidd 10473	. . . 4 ⊢ (𝜑 → 𝐵 ≤ 𝐵)
7	2, 4, 4, 5, 6	eliocd 38577	. . 3 ⊢ (𝜑 → 𝐵 ∈ (𝐴(,]𝐵))
8	1, 7	cnlimci 23459	. 2 ⊢ (𝜑 → (𝐹‘𝐵) ∈ (𝐹 limℂ 𝐵))
9		cncfrss 22502	. . . . . . . 8 ⊢ (𝐹 ∈ ((𝐴(,]𝐵)–cn→ℂ) → (𝐴(,]𝐵) ⊆ ℂ)
10	1, 9	syl 17	. . . . . . 7 ⊢ (𝜑 → (𝐴(,]𝐵) ⊆ ℂ)
11		ssid 3587	. . . . . . 7 ⊢ ℂ ⊆ ℂ
12		eqid 2610	. . . . . . . 8 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
13		eqid 2610	. . . . . . . 8 ⊢ ((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵))
14		eqid 2610	. . . . . . . 8 ⊢ ((TopOpen‘ℂfld) ↾t ℂ) = ((TopOpen‘ℂfld) ↾t ℂ)
15	12, 13, 14	cncfcn 22520	. . . . . . 7 ⊢ (((𝐴(,]𝐵) ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝐴(,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) Cn ((TopOpen‘ℂfld) ↾t ℂ)))
16	10, 11, 15	sylancl 693	. . . . . 6 ⊢ (𝜑 → ((𝐴(,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) Cn ((TopOpen‘ℂfld) ↾t ℂ)))
17	1, 16	eleqtrd 2690	. . . . 5 ⊢ (𝜑 → 𝐹 ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) Cn ((TopOpen‘ℂfld) ↾t ℂ)))
18	12	cnfldtopon 22396	. . . . . . 7 ⊢ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
19		resttopon 20775	. . . . . . 7 ⊢ (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (𝐴(,]𝐵) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) ∈ (TopOn‘(𝐴(,]𝐵)))
20	18, 10, 19	sylancr 694	. . . . . 6 ⊢ (𝜑 → ((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) ∈ (TopOn‘(𝐴(,]𝐵)))
21	12	cnfldtop 22397	. . . . . . . 8 ⊢ (TopOpen‘ℂfld) ∈ Top
22		unicntop 38230	. . . . . . . . 9 ⊢ ℂ = ∪ (TopOpen‘ℂfld)
23	22	restid 15917	. . . . . . . 8 ⊢ ((TopOpen‘ℂfld) ∈ Top → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
24	21, 23	ax-mp 5	. . . . . . 7 ⊢ ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
25	24	cnfldtopon 22396	. . . . . 6 ⊢ ((TopOpen‘ℂfld) ↾t ℂ) ∈ (TopOn‘ℂ)
26		cncnp 20894	. . . . . 6 ⊢ ((((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) ∈ (TopOn‘(𝐴(,]𝐵)) ∧ ((TopOpen‘ℂfld) ↾t ℂ) ∈ (TopOn‘ℂ)) → (𝐹 ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) Cn ((TopOpen‘ℂfld) ↾t ℂ)) ↔ (𝐹:(𝐴(,]𝐵)⟶ℂ ∧ ∀𝑥 ∈ (𝐴(,]𝐵)𝐹 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) CnP ((TopOpen‘ℂfld) ↾t ℂ))‘𝑥))))
27	20, 25, 26	sylancl 693	. . . . 5 ⊢ (𝜑 → (𝐹 ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) Cn ((TopOpen‘ℂfld) ↾t ℂ)) ↔ (𝐹:(𝐴(,]𝐵)⟶ℂ ∧ ∀𝑥 ∈ (𝐴(,]𝐵)𝐹 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) CnP ((TopOpen‘ℂfld) ↾t ℂ))‘𝑥))))
28	17, 27	mpbid 221	. . . 4 ⊢ (𝜑 → (𝐹:(𝐴(,]𝐵)⟶ℂ ∧ ∀𝑥 ∈ (𝐴(,]𝐵)𝐹 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) CnP ((TopOpen‘ℂfld) ↾t ℂ))‘𝑥)))
29	28	simpld 474	. . 3 ⊢ (𝜑 → 𝐹:(𝐴(,]𝐵)⟶ℂ)
30		ioossioc 38560	. . . 4 ⊢ (𝐴(,)𝐵) ⊆ (𝐴(,]𝐵)
31	30	a1i 11	. . 3 ⊢ (𝜑 → (𝐴(,)𝐵) ⊆ (𝐴(,]𝐵))
32		eqid 2610	. . 3 ⊢ ((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵})) = ((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵}))
33	3	recnd 9947	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ ℂ)
34	22	ntrtop 20684	. . . . . . . . 9 ⊢ ((TopOpen‘ℂfld) ∈ Top → ((int‘(TopOpen‘ℂfld))‘ℂ) = ℂ)
35	21, 34	ax-mp 5	. . . . . . . 8 ⊢ ((int‘(TopOpen‘ℂfld))‘ℂ) = ℂ
36		undif 4001	. . . . . . . . . . 11 ⊢ ((𝐴(,]𝐵) ⊆ ℂ ↔ ((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵))) = ℂ)
37	10, 36	sylib 207	. . . . . . . . . 10 ⊢ (𝜑 → ((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵))) = ℂ)
38	37	eqcomd 2616	. . . . . . . . 9 ⊢ (𝜑 → ℂ = ((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵))))
39	38	fveq2d 6107	. . . . . . . 8 ⊢ (𝜑 → ((int‘(TopOpen‘ℂfld))‘ℂ) = ((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))))
40	35, 39	syl5eqr 2658	. . . . . . 7 ⊢ (𝜑 → ℂ = ((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))))
41	33, 40	eleqtrd 2690	. . . . . 6 ⊢ (𝜑 → 𝐵 ∈ ((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))))
42	41, 7	elind 3760	. . . . 5 ⊢ (𝜑 → 𝐵 ∈ (((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))) ∩ (𝐴(,]𝐵)))
43	21	a1i 11	. . . . . 6 ⊢ (𝜑 → (TopOpen‘ℂfld) ∈ Top)
44		ssid 3587	. . . . . . 7 ⊢ (𝐴(,]𝐵) ⊆ (𝐴(,]𝐵)
45	44	a1i 11	. . . . . 6 ⊢ (𝜑 → (𝐴(,]𝐵) ⊆ (𝐴(,]𝐵))
46	22, 13	restntr 20796	. . . . . 6 ⊢ (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴(,]𝐵) ⊆ ℂ ∧ (𝐴(,]𝐵) ⊆ (𝐴(,]𝐵)) → ((int‘((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)))‘(𝐴(,]𝐵)) = (((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))) ∩ (𝐴(,]𝐵)))
47	43, 10, 45, 46	syl3anc 1318	. . . . 5 ⊢ (𝜑 → ((int‘((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)))‘(𝐴(,]𝐵)) = (((int‘(TopOpen‘ℂfld))‘((𝐴(,]𝐵) ∪ (ℂ ∖ (𝐴(,]𝐵)))) ∩ (𝐴(,]𝐵)))
48	42, 47	eleqtrrd 2691	. . . 4 ⊢ (𝜑 → 𝐵 ∈ ((int‘((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)))‘(𝐴(,]𝐵)))
49	7	snssd 4281	. . . . . . . . 9 ⊢ (𝜑 → {𝐵} ⊆ (𝐴(,]𝐵))
50		ssequn2 3748	. . . . . . . . 9 ⊢ ({𝐵} ⊆ (𝐴(,]𝐵) ↔ ((𝐴(,]𝐵) ∪ {𝐵}) = (𝐴(,]𝐵))
51	49, 50	sylib 207	. . . . . . . 8 ⊢ (𝜑 → ((𝐴(,]𝐵) ∪ {𝐵}) = (𝐴(,]𝐵))
52	51	eqcomd 2616	. . . . . . 7 ⊢ (𝜑 → (𝐴(,]𝐵) = ((𝐴(,]𝐵) ∪ {𝐵}))
53	52	oveq2d 6565	. . . . . 6 ⊢ (𝜑 → ((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)) = ((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵})))
54	53	fveq2d 6107	. . . . 5 ⊢ (𝜑 → (int‘((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵))) = (int‘((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵}))))
55		snunioo2 38578	. . . . . . 7 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐴 < 𝐵) → ((𝐴(,)𝐵) ∪ {𝐵}) = (𝐴(,]𝐵))
56	2, 4, 5, 55	syl3anc 1318	. . . . . 6 ⊢ (𝜑 → ((𝐴(,)𝐵) ∪ {𝐵}) = (𝐴(,]𝐵))
57	56	eqcomd 2616	. . . . 5 ⊢ (𝜑 → (𝐴(,]𝐵) = ((𝐴(,)𝐵) ∪ {𝐵}))
58	54, 57	fveq12d 6109	. . . 4 ⊢ (𝜑 → ((int‘((TopOpen‘ℂfld) ↾t (𝐴(,]𝐵)))‘(𝐴(,]𝐵)) = ((int‘((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵})))‘((𝐴(,)𝐵) ∪ {𝐵})))
59	48, 58	eleqtrd 2690	. . 3 ⊢ (𝜑 → 𝐵 ∈ ((int‘((TopOpen‘ℂfld) ↾t ((𝐴(,]𝐵) ∪ {𝐵})))‘((𝐴(,)𝐵) ∪ {𝐵})))
60	29, 31, 10, 12, 32, 59	limcres 23456	. 2 ⊢ (𝜑 → ((𝐹 ↾ (𝐴(,)𝐵)) limℂ 𝐵) = (𝐹 limℂ 𝐵))
61	8, 60	eleqtrrd 2691	1 ⊢ (𝜑 → (𝐹‘𝐵) ∈ ((𝐹 ↾ (𝐴(,)𝐵)) limℂ 𝐵))

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∀wral 2896   ∖ cdif 3537   ∪ cun 3538   ∩ cin 3539   ⊆ wss 3540  {csn 4125   class class class wbr 4583   ↾ cres 5040  ⟶wf 5800  ‘cfv 5804  (class class class)co 6549  ℂcc 9813  ℝcr 9814  ℝ^*cxr 9952   < clt 9953  (,)cioo 12046  (,]cioc 12047   ↾_t crest 15904  TopOpenctopn 15905  ℂ_fldccnfld 19567  Topctop 20517  TopOnctopon 20518  intcnt 20631   Cn ccn 20838   CnP ccnp 20839  –cn→ccncf 22487   lim_ℂ climc 23432

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892  ax-pre-sup 9893

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-oadd 7451  df-er 7629  df-map 7746  df-pm 7747  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-fi 8200  df-sup 8231  df-inf 8232  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-div 10564  df-nn 10898  df-2 10956  df-3 10957  df-4 10958  df-5 10959  df-6 10960  df-7 10961  df-8 10962  df-9 10963  df-n0 11170  df-z 11255  df-dec 11370  df-uz 11564  df-q 11665  df-rp 11709  df-xneg 11822  df-xadd 11823  df-xmul 11824  df-ioo 12050  df-ioc 12051  df-icc 12053  df-fz 12198  df-seq 12664  df-exp 12723  df-cj 13687  df-re 13688  df-im 13689  df-sqrt 13823  df-abs 13824  df-struct 15697  df-ndx 15698  df-slot 15699  df-base 15700  df-plusg 15781  df-mulr 15782  df-starv 15783  df-tset 15787  df-ple 15788  df-ds 15791  df-unif 15792  df-rest 15906  df-topn 15907  df-topgen 15927  df-psmet 19559  df-xmet 19560  df-met 19561  df-bl 19562  df-mopn 19563  df-cnfld 19568  df-top 20521  df-bases 20522  df-topon 20523  df-topsp 20524  df-ntr 20634  df-cn 20841  df-cnp 20842  df-xms 21935  df-ms 21936  df-cncf 22489  df-limc 23436

This theorem is referenced by:  fourierdlem46  39045