dvresntr - Mathbox for Glauco Siliprandi

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Theorem dvresntr 45306

Description: Function-builder for derivative: expand the function from an open set to its closure. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

**Hypotheses**
Ref	Expression
dvresntr.s	⊢ (𝜑 → 𝑆 ⊆ ℂ)
dvresntr.x	⊢ (𝜑 → 𝑋 ⊆ 𝑆)
dvresntr.f	⊢ (𝜑 → 𝐹:𝑋⟶ℂ)
dvresntr.j	⊢ 𝐽 = (𝐾 ↾_t 𝑆)
dvresntr.k	⊢ 𝐾 = (TopOpen‘ℂ_fld)
dvresntr.i	⊢ (𝜑 → ((int‘𝐽)‘𝑋) = 𝑌)

**Assertion**
Ref	Expression
dvresntr	⊢ (𝜑 → (𝑆 D 𝐹) = (𝑆 D (𝐹 ↾ 𝑌)))

**Proof of Theorem dvresntr**
Step	Hyp	Ref	Expression
1		dvresntr.s	. . 3 ⊢ (𝜑 → 𝑆 ⊆ ℂ)
2		dvresntr.f	. . 3 ⊢ (𝜑 → 𝐹:𝑋⟶ℂ)
3		dvresntr.x	. . 3 ⊢ (𝜑 → 𝑋 ⊆ 𝑆)
4		dvresntr.k	. . . 4 ⊢ 𝐾 = (TopOpen‘ℂ_fld)
5		dvresntr.j	. . . 4 ⊢ 𝐽 = (𝐾 ↾_t 𝑆)
6	4, 5	dvres 25839	. . 3 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝑋⟶ℂ) ∧ (𝑋 ⊆ 𝑆 ∧ 𝑋 ⊆ 𝑆)) → (𝑆 D (𝐹 ↾ 𝑋)) = ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑋)))
7	1, 2, 3, 3, 6	syl22anc 838	. 2 ⊢ (𝜑 → (𝑆 D (𝐹 ↾ 𝑋)) = ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑋)))
8		ffn 6722	. . . 4 ⊢ (𝐹:𝑋⟶ℂ → 𝐹 Fn 𝑋)
9		fnresdm 6674	. . . 4 ⊢ (𝐹 Fn 𝑋 → (𝐹 ↾ 𝑋) = 𝐹)
10	2, 8, 9	3syl 18	. . 3 ⊢ (𝜑 → (𝐹 ↾ 𝑋) = 𝐹)
11	10	oveq2d 7436	. 2 ⊢ (𝜑 → (𝑆 D (𝐹 ↾ 𝑋)) = (𝑆 D 𝐹))
12	4	cnfldtopon 24698	. . . . . . . . 9 ⊢ 𝐾 ∈ (TopOn‘ℂ)
13		resttopon 23064	. . . . . . . . 9 ⊢ ((𝐾 ∈ (TopOn‘ℂ) ∧ 𝑆 ⊆ ℂ) → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
14	12, 1, 13	sylancr 586	. . . . . . . 8 ⊢ (𝜑 → (𝐾 ↾_t 𝑆) ∈ (TopOn‘𝑆))
15	5, 14	eqeltrid 2833	. . . . . . 7 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑆))
16		topontop 22814	. . . . . . 7 ⊢ (𝐽 ∈ (TopOn‘𝑆) → 𝐽 ∈ Top)
17	15, 16	syl 17	. . . . . 6 ⊢ (𝜑 → 𝐽 ∈ Top)
18		toponuni 22815	. . . . . . . 8 ⊢ (𝐽 ∈ (TopOn‘𝑆) → 𝑆 = ∪ 𝐽)
19	15, 18	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑆 = ∪ 𝐽)
20	3, 19	sseqtrd 4020	. . . . . 6 ⊢ (𝜑 → 𝑋 ⊆ ∪ 𝐽)
21		eqid 2728	. . . . . . 7 ⊢ ∪ 𝐽 = ∪ 𝐽
22	21	ntridm 22971	. . . . . 6 ⊢ ((𝐽 ∈ Top ∧ 𝑋 ⊆ ∪ 𝐽) → ((int‘𝐽)‘((int‘𝐽)‘𝑋)) = ((int‘𝐽)‘𝑋))
23	17, 20, 22	syl2anc 583	. . . . 5 ⊢ (𝜑 → ((int‘𝐽)‘((int‘𝐽)‘𝑋)) = ((int‘𝐽)‘𝑋))
24		dvresntr.i	. . . . . 6 ⊢ (𝜑 → ((int‘𝐽)‘𝑋) = 𝑌)
25	24	fveq2d 6901	. . . . 5 ⊢ (𝜑 → ((int‘𝐽)‘((int‘𝐽)‘𝑋)) = ((int‘𝐽)‘𝑌))
26	23, 25, 24	3eqtr3d 2776	. . . 4 ⊢ (𝜑 → ((int‘𝐽)‘𝑌) = 𝑌)
27	26	reseq2d 5985	. . 3 ⊢ (𝜑 → ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑌)) = ((𝑆 D 𝐹) ↾ 𝑌))
28	21	ntrss2 22960	. . . . . . 7 ⊢ ((𝐽 ∈ Top ∧ 𝑋 ⊆ ∪ 𝐽) → ((int‘𝐽)‘𝑋) ⊆ 𝑋)
29	17, 20, 28	syl2anc 583	. . . . . 6 ⊢ (𝜑 → ((int‘𝐽)‘𝑋) ⊆ 𝑋)
30	24, 29	eqsstrrd 4019	. . . . 5 ⊢ (𝜑 → 𝑌 ⊆ 𝑋)
31	30, 3	sstrd 3990	. . . 4 ⊢ (𝜑 → 𝑌 ⊆ 𝑆)
32	4, 5	dvres 25839	. . . 4 ⊢ (((𝑆 ⊆ ℂ ∧ 𝐹:𝑋⟶ℂ) ∧ (𝑋 ⊆ 𝑆 ∧ 𝑌 ⊆ 𝑆)) → (𝑆 D (𝐹 ↾ 𝑌)) = ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑌)))
33	1, 2, 3, 31, 32	syl22anc 838	. . 3 ⊢ (𝜑 → (𝑆 D (𝐹 ↾ 𝑌)) = ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑌)))
34	24	reseq2d 5985	. . 3 ⊢ (𝜑 → ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑋)) = ((𝑆 D 𝐹) ↾ 𝑌))
35	27, 33, 34	3eqtr4rd 2779	. 2 ⊢ (𝜑 → ((𝑆 D 𝐹) ↾ ((int‘𝐽)‘𝑋)) = (𝑆 D (𝐹 ↾ 𝑌)))
36	7, 11, 35	3eqtr3d 2776	1 ⊢ (𝜑 → (𝑆 D 𝐹) = (𝑆 D (𝐹 ↾ 𝑌)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 = wceq 1534 ∈ wcel 2099 ⊆ wss 3947 ∪ cuni 4908 ↾ cres 5680 Fn wfn 6543 ⟶wf 6544 ‘cfv 6548 (class class class)co 7420 ℂcc 11136 ↾_t crest 17401 TopOpenctopn 17402 ℂ_fldccnfld 21278 Topctop 22794 TopOnctopon 22811 intcnt 22920 D cdv 25791

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 ax-pre-sup 11216

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3373 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4909 df-int 4950 df-iun 4998 df-iin 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-1st 7993 df-2nd 7994 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-1o 8486 df-er 8724 df-map 8846 df-pm 8847 df-en 8964 df-dom 8965 df-sdom 8966 df-fin 8967 df-fi 9434 df-sup 9465 df-inf 9466 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-div 11902 df-nn 12243 df-2 12305 df-3 12306 df-4 12307 df-5 12308 df-6 12309 df-7 12310 df-8 12311 df-9 12312 df-n0 12503 df-z 12589 df-dec 12708 df-uz 12853 df-q 12963 df-rp 13007 df-xneg 13124 df-xadd 13125 df-xmul 13126 df-fz 13517 df-seq 13999 df-exp 14059 df-cj 15078 df-re 15079 df-im 15080 df-sqrt 15214 df-abs 15215 df-struct 17115 df-slot 17150 df-ndx 17162 df-base 17180 df-plusg 17245 df-mulr 17246 df-starv 17247 df-tset 17251 df-ple 17252 df-ds 17254 df-unif 17255 df-rest 17403 df-topn 17404 df-topgen 17424 df-psmet 21270 df-xmet 21271 df-met 21272 df-bl 21273 df-mopn 21274 df-cnfld 21279 df-top 22795 df-topon 22812 df-topsp 22834 df-bases 22848 df-cld 22922 df-ntr 22923 df-cls 22924 df-cnp 23131 df-xms 24225 df-ms 24226 df-limc 25794 df-dv 25795

This theorem is referenced by: fourierdlem73 45567

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