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| Mirrors > Home > ILE Home > Th. List > fsumsersdc | GIF version | ||
| Description: Special case of series sum over a finite upper integer index set. (Contributed by Mario Carneiro, 26-Jul-2013.) (Revised by Jim Kingdon, 5-May-2023.) |
| Ref | Expression |
|---|---|
| fsumsers.1 | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) = if(𝑘 ∈ 𝐴, 𝐵, 0)) |
| fsumsers.2 | ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) |
| fsumsers.3 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
| fsumsers.dc | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → DECID 𝑘 ∈ 𝐴) |
| fsumsers.4 | ⊢ (𝜑 → 𝐴 ⊆ (𝑀...𝑁)) |
| Ref | Expression |
|---|---|
| fsumsersdc | ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 𝐵 = (seq𝑀( + , 𝐹)‘𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2205 | . . 3 ⊢ (ℤ≥‘𝑀) = (ℤ≥‘𝑀) | |
| 2 | fsumsers.2 | . . . 4 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) | |
| 3 | eluzel2 9653 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 4 | 2, 3 | syl 14 | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| 5 | fsumsers.4 | . . . 4 ⊢ (𝜑 → 𝐴 ⊆ (𝑀...𝑁)) | |
| 6 | fzssuz 10187 | . . . 4 ⊢ (𝑀...𝑁) ⊆ (ℤ≥‘𝑀) | |
| 7 | 5, 6 | sstrdi 3205 | . . 3 ⊢ (𝜑 → 𝐴 ⊆ (ℤ≥‘𝑀)) |
| 8 | fsumsers.1 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑘) = if(𝑘 ∈ 𝐴, 𝐵, 0)) | |
| 9 | fsumsers.dc | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → DECID 𝑘 ∈ 𝐴) | |
| 10 | 9 | ralrimiva 2579 | . . . 4 ⊢ (𝜑 → ∀𝑘 ∈ (ℤ≥‘𝑀)DECID 𝑘 ∈ 𝐴) |
| 11 | eleq1w 2266 | . . . . . 6 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ 𝐴 ↔ 𝑗 ∈ 𝐴)) | |
| 12 | 11 | dcbid 840 | . . . . 5 ⊢ (𝑘 = 𝑗 → (DECID 𝑘 ∈ 𝐴 ↔ DECID 𝑗 ∈ 𝐴)) |
| 13 | 12 | cbvralv 2738 | . . . 4 ⊢ (∀𝑘 ∈ (ℤ≥‘𝑀)DECID 𝑘 ∈ 𝐴 ↔ ∀𝑗 ∈ (ℤ≥‘𝑀)DECID 𝑗 ∈ 𝐴) |
| 14 | 10, 13 | sylib 122 | . . 3 ⊢ (𝜑 → ∀𝑗 ∈ (ℤ≥‘𝑀)DECID 𝑗 ∈ 𝐴) |
| 15 | fsumsers.3 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) | |
| 16 | 1, 4, 7, 8, 14, 15 | zsumdc 11695 | . 2 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 𝐵 = ( ⇝ ‘seq𝑀( + , 𝐹))) |
| 17 | fclim 11605 | . . . 4 ⊢ ⇝ :dom ⇝ ⟶ℂ | |
| 18 | ffun 5428 | . . . 4 ⊢ ( ⇝ :dom ⇝ ⟶ℂ → Fun ⇝ ) | |
| 19 | 17, 18 | ax-mp 5 | . . 3 ⊢ Fun ⇝ |
| 20 | 8, 2, 15, 9, 5 | fsum3cvg2 11705 | . . 3 ⊢ (𝜑 → seq𝑀( + , 𝐹) ⇝ (seq𝑀( + , 𝐹)‘𝑁)) |
| 21 | funbrfv 5617 | . . 3 ⊢ (Fun ⇝ → (seq𝑀( + , 𝐹) ⇝ (seq𝑀( + , 𝐹)‘𝑁) → ( ⇝ ‘seq𝑀( + , 𝐹)) = (seq𝑀( + , 𝐹)‘𝑁))) | |
| 22 | 19, 20, 21 | mpsyl 65 | . 2 ⊢ (𝜑 → ( ⇝ ‘seq𝑀( + , 𝐹)) = (seq𝑀( + , 𝐹)‘𝑁)) |
| 23 | 16, 22 | eqtrd 2238 | 1 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 𝐵 = (seq𝑀( + , 𝐹)‘𝑁)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 DECID wdc 836 = wceq 1373 ∈ wcel 2176 ∀wral 2484 ⊆ wss 3166 ifcif 3571 class class class wbr 4044 dom cdm 4675 Fun wfun 5265 ⟶wf 5267 ‘cfv 5271 (class class class)co 5944 ℂcc 7923 0cc0 7925 + caddc 7928 ℤcz 9372 ℤ≥cuz 9648 ...cfz 10130 seqcseq 10592 ⇝ cli 11589 Σcsu 11664 |
| 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 615 ax-in2 616 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-coll 4159 ax-sep 4162 ax-nul 4170 ax-pow 4218 ax-pr 4253 ax-un 4480 ax-setind 4585 ax-iinf 4636 ax-cnex 8016 ax-resscn 8017 ax-1cn 8018 ax-1re 8019 ax-icn 8020 ax-addcl 8021 ax-addrcl 8022 ax-mulcl 8023 ax-mulrcl 8024 ax-addcom 8025 ax-mulcom 8026 ax-addass 8027 ax-mulass 8028 ax-distr 8029 ax-i2m1 8030 ax-0lt1 8031 ax-1rid 8032 ax-0id 8033 ax-rnegex 8034 ax-precex 8035 ax-cnre 8036 ax-pre-ltirr 8037 ax-pre-ltwlin 8038 ax-pre-lttrn 8039 ax-pre-apti 8040 ax-pre-ltadd 8041 ax-pre-mulgt0 8042 ax-pre-mulext 8043 ax-arch 8044 ax-caucvg 8045 |
| This theorem depends on definitions: df-bi 117 df-dc 837 df-3or 982 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ne 2377 df-nel 2472 df-ral 2489 df-rex 2490 df-reu 2491 df-rmo 2492 df-rab 2493 df-v 2774 df-sbc 2999 df-csb 3094 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-nul 3461 df-if 3572 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-int 3886 df-iun 3929 df-br 4045 df-opab 4106 df-mpt 4107 df-tr 4143 df-id 4340 df-po 4343 df-iso 4344 df-iord 4413 df-on 4415 df-ilim 4416 df-suc 4418 df-iom 4639 df-xp 4681 df-rel 4682 df-cnv 4683 df-co 4684 df-dm 4685 df-rn 4686 df-res 4687 df-ima 4688 df-iota 5232 df-fun 5273 df-fn 5274 df-f 5275 df-f1 5276 df-fo 5277 df-f1o 5278 df-fv 5279 df-isom 5280 df-riota 5899 df-ov 5947 df-oprab 5948 df-mpo 5949 df-1st 6226 df-2nd 6227 df-recs 6391 df-irdg 6456 df-frec 6477 df-1o 6502 df-oadd 6506 df-er 6620 df-en 6828 df-dom 6829 df-fin 6830 df-pnf 8109 df-mnf 8110 df-xr 8111 df-ltxr 8112 df-le 8113 df-sub 8245 df-neg 8246 df-reap 8648 df-ap 8655 df-div 8746 df-inn 9037 df-2 9095 df-3 9096 df-4 9097 df-n0 9296 df-z 9373 df-uz 9649 df-q 9741 df-rp 9776 df-fz 10131 df-fzo 10265 df-seqfrec 10593 df-exp 10684 df-ihash 10921 df-cj 11153 df-re 11154 df-im 11155 df-rsqrt 11309 df-abs 11310 df-clim 11590 df-sumdc 11665 |
| This theorem is referenced by: fsum3ser 11708 |
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