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Theorem taylpval 26313

Description: Value of the Taylor polynomial. (Contributed by Mario Carneiro, 31-Dec-2016.)

**Hypotheses**
Ref	Expression
taylpfval.s	⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
taylpfval.f	⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
taylpfval.a	⊢ (𝜑 → 𝐴 ⊆ 𝑆)
taylpfval.n	⊢ (𝜑 → 𝑁 ∈ ℕ₀)
taylpfval.b	⊢ (𝜑 → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘𝑁))
taylpfval.t	⊢ 𝑇 = (𝑁(𝑆 Tayl 𝐹)𝐵)
taylpval.x	⊢ (𝜑 → 𝑋 ∈ ℂ)

**Assertion**
Ref	Expression
taylpval	⊢ (𝜑 → (𝑇‘𝑋) = Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)))

Distinct variable groups: 𝐵,𝑘 𝑘,𝐹 𝑘,𝑁 𝜑,𝑘 𝑆,𝑘 𝑘,𝑋 Allowed substitution hints: 𝐴(𝑘) 𝑇(𝑘)

Proof of Theorem taylpval Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		taylpfval.s	. . 3 ⊢ (𝜑 → 𝑆 ∈ {ℝ, ℂ})
2		taylpfval.f	. . 3 ⊢ (𝜑 → 𝐹:𝐴⟶ℂ)
3		taylpfval.a	. . 3 ⊢ (𝜑 → 𝐴 ⊆ 𝑆)
4		taylpfval.n	. . 3 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
5		taylpfval.b	. . 3 ⊢ (𝜑 → 𝐵 ∈ dom ((𝑆 D^𝑛 𝐹)‘𝑁))
6		taylpfval.t	. . 3 ⊢ 𝑇 = (𝑁(𝑆 Tayl 𝐹)𝐵)
7	1, 2, 3, 4, 5, 6	taylpfval 26311	. 2 ⊢ (𝜑 → 𝑇 = (𝑥 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘))))
8		simplr 768	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 = 𝑋) ∧ 𝑘 ∈ (0...𝑁)) → 𝑥 = 𝑋)
9	8	oveq1d 7415	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 = 𝑋) ∧ 𝑘 ∈ (0...𝑁)) → (𝑥 − 𝐵) = (𝑋 − 𝐵))
10	9	oveq1d 7415	. . . 4 ⊢ (((𝜑 ∧ 𝑥 = 𝑋) ∧ 𝑘 ∈ (0...𝑁)) → ((𝑥 − 𝐵)↑𝑘) = ((𝑋 − 𝐵)↑𝑘))
11	10	oveq2d 7416	. . 3 ⊢ (((𝜑 ∧ 𝑥 = 𝑋) ∧ 𝑘 ∈ (0...𝑁)) → (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)) = (((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)))
12	11	sumeq2dv 15707	. 2 ⊢ ((𝜑 ∧ 𝑥 = 𝑋) → Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑥 − 𝐵)↑𝑘)) = Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)))
13		taylpval.x	. 2 ⊢ (𝜑 → 𝑋 ∈ ℂ)
14		sumex 15693	. . 3 ⊢ Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)) ∈ V
15	14	a1i 11	. 2 ⊢ (𝜑 → Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)) ∈ V)
16	7, 12, 13, 15	fvmptd 6990	1 ⊢ (𝜑 → (𝑇‘𝑋) = Σ𝑘 ∈ (0...𝑁)(((((𝑆 D^𝑛 𝐹)‘𝑘)‘𝐵) / (!‘𝑘)) · ((𝑋 − 𝐵)↑𝑘)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2107 Vcvv 3457 ⊆ wss 3924 {cpr 4601 dom cdm 5652 ⟶wf 6524 ‘cfv 6528 (class class class)co 7400 ℂcc 11120 ℝcr 11121 0cc0 11122 · cmul 11127 − cmin 11459 / cdiv 11887 ℕ₀cn0 12494 ...cfz 13514 ↑cexp 14069 !cfa 14281 Σcsu 15691 D^𝑛 cdvn 25804 Tayl ctayl 26299

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-rep 5247 ax-sep 5264 ax-nul 5274 ax-pow 5333 ax-pr 5400 ax-un 7724 ax-inf2 9648 ax-cnex 11178 ax-resscn 11179 ax-1cn 11180 ax-icn 11181 ax-addcl 11182 ax-addrcl 11183 ax-mulcl 11184 ax-mulrcl 11185 ax-mulcom 11186 ax-addass 11187 ax-mulass 11188 ax-distr 11189 ax-i2m1 11190 ax-1ne0 11191 ax-1rid 11192 ax-rnegex 11193 ax-rrecex 11194 ax-cnre 11195 ax-pre-lttri 11196 ax-pre-lttrn 11197 ax-pre-ltadd 11198 ax-pre-mulgt0 11199 ax-pre-sup 11200 ax-addf 11201

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3357 df-reu 3358 df-rab 3414 df-v 3459 df-sbc 3764 df-csb 3873 df-dif 3927 df-un 3929 df-in 3931 df-ss 3941 df-pss 3944 df-nul 4307 df-if 4499 df-pw 4575 df-sn 4600 df-pr 4602 df-tp 4604 df-op 4606 df-uni 4882 df-int 4921 df-iun 4967 df-iin 4968 df-br 5118 df-opab 5180 df-mpt 5200 df-tr 5228 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6288 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6530 df-fn 6531 df-f 6532 df-f1 6533 df-fo 6534 df-f1o 6535 df-fv 6536 df-isom 6537 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7857 df-1st 7983 df-2nd 7984 df-supp 8155 df-frecs 8275 df-wrecs 8306 df-recs 8380 df-rdg 8419 df-1o 8475 df-er 8714 df-map 8837 df-pm 8838 df-en 8955 df-dom 8956 df-sdom 8957 df-fin 8958 df-fsupp 9369 df-fi 9418 df-sup 9449 df-inf 9450 df-oi 9517 df-card 9946 df-pnf 11264 df-mnf 11265 df-xr 11266 df-ltxr 11267 df-le 11268 df-sub 11461 df-neg 11462 df-div 11888 df-nn 12234 df-2 12296 df-3 12297 df-4 12298 df-5 12299 df-6 12300 df-7 12301 df-8 12302 df-9 12303 df-n0 12495 df-z 12582 df-dec 12702 df-uz 12846 df-q 12958 df-rp 13002 df-xneg 13121 df-xadd 13122 df-xmul 13123 df-icc 13361 df-fz 13515 df-fzo 13662 df-seq 14010 df-exp 14070 df-fac 14282 df-hash 14339 df-cj 15107 df-re 15108 df-im 15109 df-sqrt 15243 df-abs 15244 df-clim 15493 df-sum 15692 df-struct 17153 df-sets 17170 df-slot 17188 df-ndx 17200 df-base 17216 df-plusg 17271 df-mulr 17272 df-starv 17273 df-tset 17277 df-ple 17278 df-ds 17280 df-unif 17281 df-rest 17423 df-topn 17424 df-0g 17442 df-gsum 17443 df-topgen 17444 df-mgm 18605 df-sgrp 18684 df-mnd 18700 df-grp 18906 df-minusg 18907 df-cntz 19287 df-cmn 19750 df-abl 19751 df-mgp 20088 df-ur 20129 df-ring 20182 df-cring 20183 df-psmet 21294 df-xmet 21295 df-met 21296 df-bl 21297 df-mopn 21298 df-fbas 21299 df-fg 21300 df-cnfld 21303 df-top 22819 df-topon 22836 df-topsp 22858 df-bases 22871 df-cld 22944 df-ntr 22945 df-cls 22946 df-nei 23023 df-lp 23061 df-perf 23062 df-cnp 23153 df-haus 23240 df-fil 23771 df-fm 23863 df-flim 23864 df-flf 23865 df-tsms 24052 df-xms 24246 df-ms 24247 df-limc 25806 df-dv 25807 df-dvn 25808 df-tayl 26301

This theorem is referenced by: (None)

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