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Theorem seqof2 13709
Description: Distribute function operation through a sequence. Maps-to notation version of seqof 13708. (Contributed by Mario Carneiro, 7-Jul-2017.)
Hypotheses
Ref Expression
seqof2.1 (𝜑𝐴𝑉)
seqof2.2 (𝜑𝑁 ∈ (ℤ𝑀))
seqof2.3 (𝜑 → (𝑀...𝑁) ⊆ 𝐵)
seqof2.4 ((𝜑 ∧ (𝑥𝐵𝑧𝐴)) → 𝑋𝑊)
Assertion
Ref Expression
seqof2 (𝜑 → (seq𝑀( ∘f + , (𝑥𝐵 ↦ (𝑧𝐴𝑋)))‘𝑁) = (𝑧𝐴 ↦ (seq𝑀( + , (𝑥𝐵𝑋))‘𝑁)))
Distinct variable groups:   𝑥,𝑧,𝐴   𝑥,𝑀,𝑧   𝑥,𝑁,𝑧   𝜑,𝑥,𝑧   𝑧, +   𝑥,𝐵
Allowed substitution hints:   𝐵(𝑧)   + (𝑥)   𝑉(𝑥,𝑧)   𝑊(𝑥,𝑧)   𝑋(𝑥,𝑧)

Proof of Theorem seqof2
Dummy variables 𝑛 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 seqof2.1 . . 3 (𝜑𝐴𝑉)
2 seqof2.2 . . 3 (𝜑𝑁 ∈ (ℤ𝑀))
3 nfv 1918 . . . . . 6 𝑥(𝜑𝑛 ∈ (𝑀...𝑁))
4 nffvmpt1 6767 . . . . . . 7 𝑥((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛)
5 nfcv 2906 . . . . . . . 8 𝑥𝐴
6 nffvmpt1 6767 . . . . . . . 8 𝑥((𝑥𝐵𝑋)‘𝑛)
75, 6nfmpt 5177 . . . . . . 7 𝑥(𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛))
84, 7nfeq 2919 . . . . . 6 𝑥((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛))
93, 8nfim 1900 . . . . 5 𝑥((𝜑𝑛 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛)))
10 eleq1w 2821 . . . . . . 7 (𝑥 = 𝑛 → (𝑥 ∈ (𝑀...𝑁) ↔ 𝑛 ∈ (𝑀...𝑁)))
1110anbi2d 628 . . . . . 6 (𝑥 = 𝑛 → ((𝜑𝑥 ∈ (𝑀...𝑁)) ↔ (𝜑𝑛 ∈ (𝑀...𝑁))))
12 fveq2 6756 . . . . . . 7 (𝑥 = 𝑛 → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛))
13 fveq2 6756 . . . . . . . 8 (𝑥 = 𝑛 → ((𝑥𝐵𝑋)‘𝑥) = ((𝑥𝐵𝑋)‘𝑛))
1413mpteq2dv 5172 . . . . . . 7 (𝑥 = 𝑛 → (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑥)) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛)))
1512, 14eqeq12d 2754 . . . . . 6 (𝑥 = 𝑛 → (((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑥)) ↔ ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛))))
1611, 15imbi12d 344 . . . . 5 (𝑥 = 𝑛 → (((𝜑𝑥 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑥))) ↔ ((𝜑𝑛 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛)))))
17 seqof2.3 . . . . . . . 8 (𝜑 → (𝑀...𝑁) ⊆ 𝐵)
1817sselda 3917 . . . . . . 7 ((𝜑𝑥 ∈ (𝑀...𝑁)) → 𝑥𝐵)
191adantr 480 . . . . . . . 8 ((𝜑𝑥 ∈ (𝑀...𝑁)) → 𝐴𝑉)
2019mptexd 7082 . . . . . . 7 ((𝜑𝑥 ∈ (𝑀...𝑁)) → (𝑧𝐴𝑋) ∈ V)
21 eqid 2738 . . . . . . . 8 (𝑥𝐵 ↦ (𝑧𝐴𝑋)) = (𝑥𝐵 ↦ (𝑧𝐴𝑋))
2221fvmpt2 6868 . . . . . . 7 ((𝑥𝐵 ∧ (𝑧𝐴𝑋) ∈ V) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = (𝑧𝐴𝑋))
2318, 20, 22syl2anc 583 . . . . . 6 ((𝜑𝑥 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = (𝑧𝐴𝑋))
2418adantr 480 . . . . . . . 8 (((𝜑𝑥 ∈ (𝑀...𝑁)) ∧ 𝑧𝐴) → 𝑥𝐵)
25 simpll 763 . . . . . . . . 9 (((𝜑𝑥 ∈ (𝑀...𝑁)) ∧ 𝑧𝐴) → 𝜑)
26 simpr 484 . . . . . . . . 9 (((𝜑𝑥 ∈ (𝑀...𝑁)) ∧ 𝑧𝐴) → 𝑧𝐴)
27 seqof2.4 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝐵𝑧𝐴)) → 𝑋𝑊)
2825, 24, 26, 27syl12anc 833 . . . . . . . 8 (((𝜑𝑥 ∈ (𝑀...𝑁)) ∧ 𝑧𝐴) → 𝑋𝑊)
29 eqid 2738 . . . . . . . . 9 (𝑥𝐵𝑋) = (𝑥𝐵𝑋)
3029fvmpt2 6868 . . . . . . . 8 ((𝑥𝐵𝑋𝑊) → ((𝑥𝐵𝑋)‘𝑥) = 𝑋)
3124, 28, 30syl2anc 583 . . . . . . 7 (((𝜑𝑥 ∈ (𝑀...𝑁)) ∧ 𝑧𝐴) → ((𝑥𝐵𝑋)‘𝑥) = 𝑋)
3231mpteq2dva 5170 . . . . . 6 ((𝜑𝑥 ∈ (𝑀...𝑁)) → (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑥)) = (𝑧𝐴𝑋))
3323, 32eqtr4d 2781 . . . . 5 ((𝜑𝑥 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑥) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑥)))
349, 16, 33chvarfv 2236 . . . 4 ((𝜑𝑛 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛)))
35 nfcv 2906 . . . . 5 𝑦((𝑥𝐵𝑋)‘𝑛)
36 nfcsb1v 3853 . . . . . 6 𝑧𝑦 / 𝑧(𝑥𝐵𝑋)
37 nfcv 2906 . . . . . 6 𝑧𝑛
3836, 37nffv 6766 . . . . 5 𝑧(𝑦 / 𝑧(𝑥𝐵𝑋)‘𝑛)
39 csbeq1a 3842 . . . . . 6 (𝑧 = 𝑦 → (𝑥𝐵𝑋) = 𝑦 / 𝑧(𝑥𝐵𝑋))
4039fveq1d 6758 . . . . 5 (𝑧 = 𝑦 → ((𝑥𝐵𝑋)‘𝑛) = (𝑦 / 𝑧(𝑥𝐵𝑋)‘𝑛))
4135, 38, 40cbvmpt 5181 . . . 4 (𝑧𝐴 ↦ ((𝑥𝐵𝑋)‘𝑛)) = (𝑦𝐴 ↦ (𝑦 / 𝑧(𝑥𝐵𝑋)‘𝑛))
4234, 41eqtrdi 2795 . . 3 ((𝜑𝑛 ∈ (𝑀...𝑁)) → ((𝑥𝐵 ↦ (𝑧𝐴𝑋))‘𝑛) = (𝑦𝐴 ↦ (𝑦 / 𝑧(𝑥𝐵𝑋)‘𝑛)))
431, 2, 42seqof 13708 . 2 (𝜑 → (seq𝑀( ∘f + , (𝑥𝐵 ↦ (𝑧𝐴𝑋)))‘𝑁) = (𝑦𝐴 ↦ (seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋))‘𝑁)))
44 nfcv 2906 . . 3 𝑦(seq𝑀( + , (𝑥𝐵𝑋))‘𝑁)
45 nfcv 2906 . . . . 5 𝑧𝑀
46 nfcv 2906 . . . . 5 𝑧 +
4745, 46, 36nfseq 13659 . . . 4 𝑧seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋))
48 nfcv 2906 . . . 4 𝑧𝑁
4947, 48nffv 6766 . . 3 𝑧(seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋))‘𝑁)
5039seqeq3d 13657 . . . 4 (𝑧 = 𝑦 → seq𝑀( + , (𝑥𝐵𝑋)) = seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋)))
5150fveq1d 6758 . . 3 (𝑧 = 𝑦 → (seq𝑀( + , (𝑥𝐵𝑋))‘𝑁) = (seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋))‘𝑁))
5244, 49, 51cbvmpt 5181 . 2 (𝑧𝐴 ↦ (seq𝑀( + , (𝑥𝐵𝑋))‘𝑁)) = (𝑦𝐴 ↦ (seq𝑀( + , 𝑦 / 𝑧(𝑥𝐵𝑋))‘𝑁))
5343, 52eqtr4di 2797 1 (𝜑 → (seq𝑀( ∘f + , (𝑥𝐵 ↦ (𝑧𝐴𝑋)))‘𝑁) = (𝑧𝐴 ↦ (seq𝑀( + , (𝑥𝐵𝑋))‘𝑁)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1539  wcel 2108  Vcvv 3422  csb 3828  wss 3883  cmpt 5153  cfv 6418  (class class class)co 7255  f cof 7509  cuz 12511  ...cfz 13168  seqcseq 13649
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-cnex 10858  ax-resscn 10859  ax-1cn 10860  ax-icn 10861  ax-addcl 10862  ax-addrcl 10863  ax-mulcl 10864  ax-mulrcl 10865  ax-mulcom 10866  ax-addass 10867  ax-mulass 10868  ax-distr 10869  ax-i2m1 10870  ax-1ne0 10871  ax-1rid 10872  ax-rnegex 10873  ax-rrecex 10874  ax-cnre 10875  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878  ax-pre-mulgt0 10879
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-of 7511  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-er 8456  df-en 8692  df-dom 8693  df-sdom 8694  df-pnf 10942  df-mnf 10943  df-xr 10944  df-ltxr 10945  df-le 10946  df-sub 11137  df-neg 11138  df-nn 11904  df-n0 12164  df-z 12250  df-uz 12512  df-fz 13169  df-seq 13650
This theorem is referenced by:  mtestbdd  25469  lgamgulm2  26090  lgamcvglem  26094
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